Malicious
96/100
26 points past the malicious line at 70.
Why this verdict
- MalwareBazaar known sample: Earthworm
- Known malicious hash (feed): urlhaus: malware payload (elf)
- Packed (UPX, confidence 65)
- 1 evasive checkpoint(s)
Analysis layers
Malware family
0 independent sourcesNamed by a single source. Treat it as a lead rather than a classification.
| Layer | Source | What it matched |
|---|---|---|
| hash_feed | rule corpus | urlhaus: malware payload (elf) |
Detection signatures
1 detected| Severity | Detection | Evidence | Layer |
|---|---|---|---|
| MED |
Packed with UPX
MITRE T1027.002
|
packer
UPX
packer identification
entropy
7.95
file entropy (8.0 = random)
|
static |
Structure
What the file is made of: headers, imports, how it was built and whether it was signed.
Sections & resources
How the file is laid out in memory, and what is embedded in it: section roles, access rights, entropy and every resource entry.
Signatures & packing
What matched and what is hidden: YARA rules, capa capabilities, family attribution, packer detection, unpacked payloads and recovered configuration.
Strings
The readable content: embedded secrets, flagged strings and everything extraction recovered.
Code
What the sample would execute: the emulated API call sequence, and the disassembled entry point.
- UPX! magic present
- High file entropy 7.9471
- Unusually few sections (0)
ELF header
mips · 32-bit| Type | ET_DYN |
|---|---|
| Machine | mips (big-endian) |
| Entry point | 0x3a860 |
| Interpreter | none (static) |
| Linkage | dynamic stripped |
| Hardening | exec stack |
Needed libraries
0No dynamic dependencies (static binary).
Imported symbols
0YARA matches
1 finding · 0 scored| Rule | What it matched | Corpus | Weight |
|---|---|---|---|
|
SUSP_ELF_LNX_UPX_Compressed_File
rule dated 2018-12-12
|
Detects a suspicious ELF binary with UPX compression
3 of 4 strings matched
$s1
PROT_EXEC|PROT_WRITE failed.
at 0xb410
$s2
$Id: UPX
at 0xb47f
$s3
$Info: This file is packed with ...
at 0xb430
|
Tier 3 - community corpus
casts no family vote; every measured false family match came from here
|
SCORED 0
Scored 0: the rule declares no category. Only anti-vm, anti-debug, dropper and packer matches carry weight.
|
None of the rules above moved the score. The score model reads four rule categories - anti-vm, anti-debug, dropper and packer - and a rule outside them can match, and be worth reading, without being evidence the verdict is built on.
Extracted strings
showing 14- TJEr
- YQar
- ev6tho
- 2fhin
- sM%d
- b79NNV]E
- PONO
- lOST
- reca
- n,WST
- VEKK5
- (!PROT_EXEC|PROT_WRITE failed.
- $Info: This file is packed with the UPX executable packer http://upx.sf.net $
- $Id: UPX 4.22 Copyright (C) 1996-2024 the UPX Team. All Rights Reserved. $
No strings match this filter.
Stack and decoded strings were not recovered: string emulation failed on this file. Only literal strings present in the file are listed above.
Nothing in this view
This sample produced no results for this part of the static analysis.
VM console
headless guestThe Linux sandbox runs a server image with no desktop, so there is no screen to record - this is the boot console, kept because a kernel panic or an out-of-memory kill would show up here and in no other layer. What the sample did is under Behavior, File & registry and Network, captured from the syscall trace rather than from pixels.
Behavior summary
1 process(es) observed
MITRE ATT&CK
1 techniqueSyscall summary
top calls| execve | 1 |
|---|
Persistence & evasion
No persistence or evasion behavior observed.
No network activity - the run was isolated
This detonation was given no internet connection, so a sample that wanted to reach out could not. An empty section here says nothing about whether it tried.
Process tree
What ran during the detonation, and what each process did. Select a node to see the activity attributed to it.
e
1 processAttributed activity
Nothing in this run was attributed to this process. That is not the same as "it did nothing" - it means no captured operation carried its pid.
Established mechanisms
cleanNo persistence established
None of the 90 auto-start methods below were established during this run.
Detection coverage
0 / 90Every auto-start method checked on this sample, grouped by family. A method with no result is reported clean.
- Active Setup Installed Component T1547.014 clean
- Explorer Delay-Load Object T1547.001 clean
- Explorer Run Key T1547.001 clean
- Explorer SharedTaskScheduler T1547.001 clean
- Group Policy Extension DLL T1547.004 clean
- Group Policy Run Key T1547.001 clean
- Logon Script T1037.001 clean
- RDP WDS Startup Program T1547.001 clean
- Registry Run Key T1547.001 clean
- Registry RunEx Key T1547.001 clean
- Registry RunOnce Key T1547.001 clean
- Registry RunOnceEx Key T1547.001 clean
- Registry RunServices Key T1547.001 clean
- Startup Folder Item T1547.001 clean
- Startup Folder Redirection T1547.001 clean
- Terminal Services Initial Program T1547.001 clean
- Winlogon GINA DLL T1547.004 clean
- Winlogon MPNotify Value T1547.004 clean
- Winlogon Notify Package T1547.004 clean
- Winlogon Shell Value T1547.004 clean
- Winlogon Taskman Value T1547.004 clean
- Winlogon Userinit Value T1547.004 clean
- BITS Job T1197 clean
- Print Monitor DLL T1547.010 clean
- Print Processor DLL T1547.012 clean
- Scheduled Task T1053.005 clean
- Scheduled Task Registry Implant T1053.005 clean
- Service Control Manager Security Descriptor T1574.011 clean
- Service DLL Hijack T1543.003 clean
- Time Provider DLL T1547.003 clean
- Windows Service Creation T1543.003 clean
- .NET Managed Debugger T1546.012 clean
- Accessibility Tool Hijack T1546.008 clean
- AeDebug Postmortem Debugger T1546.012 clean
- App Paths Hijack T1546.012 clean
- Application Shim Database T1546.011 clean
- Boot Verification Program T1547.002 clean
- Command Processor AutoRun T1546.011 clean
- Explorer Load Value T1547.001 clean
- Explorer MyComputer Tool Hijack T1546.001 clean
- Registry Image File Execution Options T1546.012 clean
- Screensaver Hijack T1546.002 clean
- Setup ErrorHandler Script T1546 clean
- Shell Open Command Hijack T1546.001 clean
- SilentProcessExit Monitor T1546.012 clean
- Telemetry Controller Command T1546.015 clean
- WER ReflectDebugger T1546.012 clean
- Windows Error Reporting Debugger T1546.012 clean
- .NET CLR Profiler DLL T1574.012 clean
- .NET Startup Hook DLL T1574 clean
- AppCert DLLs T1546.009 clean
- AppInit DLLs T1546.010 clean
- AutodialDLL Winsock Injection T1546.006 clean
- DLL Search-Order Hijack T1574.001 T1574.002 clean
- DNS Server Plugin DLL T1574.001 clean
- HTML Help Helper DLL T1546 clean
- KnownDLLs Manipulation T1574.001 clean
- Natural Language Platform DLL Override T1546 clean
- Netsh Helper DLL T1546.007 clean
- Winsock Layered Service Provider T1546.006 clean
- Browser Extension T1176 clean
- Browser Helper Object T1176 clean
- COM Server Hijack T1546.015 clean
- HTML Help COM Object Hijack T1546.015 clean
- Shell Context Menu Handler T1546.001 clean
- Shell Extension Handler T1546.001 clean
- Account RID Hijack T1098 clean
- AMSI Provider T1562.001 clean
- Credential Provider T1547.014 clean
- DSRM Admin Logon Backdoor T1556 clean
- Hidden Local Account T1136.001 clean
- LSA Authentication Package T1547.002 clean
- LSA Extension DLL T1547.005 clean
- LSA Notification Package T1547.005 clean
- LSA Security Package T1547.005 clean
- Network Provider DLL T1556.008 clean
- Security Support Provider T1547.005 clean
- Netsh Port Proxy T1090.001 clean
- Office Add-in T1137.006 clean
- Office Executable Sideload T1574.002 clean
- Office Startup Template T1137.001 clean
- Office Test Key T1137.002 clean
- Power Automate Flow T1546 clean
- PowerShell Profile T1546.013 clean
- Windows Terminal Startup Action T1546 clean
- WMI Event Subscription T1546.003 clean
- BootExecute Native Image T1547.002 clean
- PlatformExecute Native Image T1547.002 clean
- SetupExecute Native Image T1547.002 clean
- UEFI / Bootkit Artifact T1542.003 T1542.001 clean
File activity summary
File & registry ops
0 file · 0 registry · sample scope
| Operation | Target | Process |
|---|
No file or registry operations captured.
No operations match your filter.
File reputation
2 of 7 listed| Source | Checks | Result | Detail | Feed |
|---|---|---|---|---|
| MalwareBazaar | File hash | Earthworm | elf | live lookup |
| URLhaus payload hashes | File hash | listed | urlhaus: Earthworm | 1,474 records 5 minutes ago |
| VirusTotal | File hash | cannot access | rate limited (free-tier quota) | live lookup |
| filescan.io | File hash | no detections | - | live lookup |
| MalwareBazaar hash feed | File hash | clean | not in feed | 2,535 records 5 minutes ago |
| MalwareBazaar ransomware feed | File hash | clean | not in feed | 8,271 records 4 hours ago |
| ThreatFox hash IOCs | File hash | clean | not in feed | 1,632 records 5 minutes ago |
Hash lookups only - the sample itself is never uploaded to any third party.
Network indicators
8 clear| Source | Checks | Result | Detail | Feed |
|---|---|---|---|---|
| blocklist.de | IP / domain / URL | clean | 1 observed indicator, none listed | 24.5k records 5 minutes ago |
| CINS Army | IP / domain / URL | clean | 1 observed indicator, none listed | 15k records 5 minutes ago |
| Emerging Threats | IP / domain / URL | clean | 1 observed indicator, none listed | 580 records 5 minutes ago |
| Feodo Tracker | IP / domain / URL | clean | 1 observed indicator, none listed | 5 records 5 minutes ago |
| IPsum | IP / domain / URL | clean | 1 observed indicator, none listed | 17.7k records 5 minutes ago |
| Phishing.Database | IP / domain / URL | clean | 1 observed indicator, none listed | 391.1k records 4 hours ago |
| ThreatFox | IP / domain / URL | clean | 1 observed indicator, none listed | 1,632 records 5 minutes ago |
| URLhaus | IP / domain / URL | clean | 1 observed indicator, none listed | 5,155 records 5 minutes ago |
TLS fingerprints
0 clear| Source | Checks | Result | Detail | Feed |
|---|---|---|---|---|
| abuse.ch JA3 blocklist | JA3 / JA4 | not checked | no TLS client fingerprint observed | 97 records 16 hours ago |
| SSL blocklist | JA3 / JA4 | not checked | no TLS client fingerprint observed | 10.7k records 5 minutes ago |
Detection rules
1 of 2 listed| Source | Checks | Result | Detail | Feed |
|---|---|---|---|---|
| YARA rules | Sample content | 1 match | SUSP_ELF_LNX_UPX_Compressed_File | 110 records 6 minutes ago |
| Sigma rules | Behavior log | clean | - | 2,275 records 22 hours ago |
Tooling catalogs
4 clear| Source | Checks | Result | Detail | Feed |
|---|---|---|---|---|
| LOLBAS | Process image paths | clean | 1 process image path, none masqueraded | 244 records 6 minutes ago |
| LOLBootloaders | File hash | clean | not a known vulnerable bootloader | 520 records 5 minutes ago |
| LOLDrivers | File hash | clean | not a known vulnerable driver | 2,306 records 5 minutes ago |
| LOLRMM | Names and domains | clean | 2 name/domain indicators checked, no remote-management tooling | 322 records 5 minutes ago |
Analyst narrative
The analysis of the sample indicates that it was successfully executed in the sandbox environment. The following kill-chain elements were observed: 1. **Initial Access**: The sample appears to be a UPX-packed executable, which suggests it may have been distributed in a compressed format to evade detection initially. However, no specific indicators of initial access were provided. 2. **Execution**: The sample executed successfully, as evidenced by the observed process creation. A process named "e" was spawned with the command line `/var/tmp/e`, indicating that the sample was able to run on the Linux platform. 3. **Persistence**: There were no indications of persistence mechanisms employed by the sample. No registry operations or file operations that would suggest persistence were observed. 4. **Defense Evasion**: The sample was packed using UPX, which is a common technique used to obfuscate the true nature of the executable and evade detection. The high file entropy (7.9471) and the presence of UPX packing signals further support this. 5. **Command and Control (C2)**: There were no network connections or communications observed that would indicate any command and control activity. The sample did not attempt to connect to any external servers during the analysis. 6. **Impact**: The behavior summary indicates that only one process was observed, and there were no dropped files or other actions that would suggest a significant impact on the system. In conclusion, while the sample executed successfully, it exhibited limited behavior with no clear indicators of malicious intent beyond its packing and execution. The lack of persistence, C2 activity, and impact suggests that the sample may not pose a significant threat, but further investigation would be warranted to understand its full capabilities. The verdict is inconclusive due to the absence of more definitive malicious behavior.
Evasion analysis
EvasiveNetwork indicators
1| Severity | Type | Indicator | Description |
|---|---|---|---|
| info | url | http://upx.sf.net | Extracted from the sample's strings |
File indicators
2| Severity | Type | Indicator | Description |
|---|---|---|---|
| malicious | sample_sha256 | 98c7e13439949f844d2ba77d14d1e6e0267eb0ca97ecb0effe858f01153f5ace | Submitted sample (SHA256) |
| malicious | sample_md5 | f0b884c8c553462e04fbaa3eaddfd5fb | Submitted sample (MD5) |
MITRE ATT&CK
1 techniqueSigma detections
0 matches of 2275 rulesThe Sigma corpus was evaluated against this run's processes, registry, file, network, DNS and script activity. Nothing matched.
Generated rules
No generated rules
Detection rules are auto-generated after analysis.
Extracted files
What came out of the sample: unpacked payloads, carved objects and captured memory. Each one is stored by content hash, so the same object extracted twice is the same row.
No extracted files
Nothing was unpacked or carved out of this sample. Packed samples, documents with embedded objects and installers are the ones that usually produce artifacts here.
Export & download
/s/2375The report downloads - PCAP and the SIEM/TIP exports - are a paid-plan feature. Sign in with a paid plan to export this report.
AI analysis report
An enterprise report with an AI-written executive summary, threat assessment, kill chain, and recommendations, plus the derived evidence (verdict, MITRE ATT&CK, network, file modifications, dropped files, IOCs) and screenshots. The AI narrative is built from derived analysis data only, so the raw sample never leaves the host (no-upload and AI-boundary preserved).
Headers
Body
Headers
Body
You are about to download the raw, live sample. It is real, potentially destructive malware and can harm your machine if opened or run. Only handle it inside an isolated analysis environment.
Delivered as a ZIP encrypted with the password infected so the bytes are never handled unprotected.
Report this analysis
Analysis reports are produced automatically from files, addresses and text submitted by visitors. If this one publishes your material, identifies you, or should not be public for any other reason, tell us why and an administrator will review it.
Public analyses of this file
1 run| Submitted | Environment | Verdict | Score |
|---|---|---|---|
| 2026-09-07 21:42 Shown below | Static analysis | Malicious | 96/100 |