Malwagon
BIN
e File Analysis · submitted Sep 7, 2026 21:42 · 47.6 KB
1proc 3IOCs
Malicious96 Linux Completed Public
Get sample Report Sign in

Malicious

96/100

26 points past the malicious line at 70.

Clean0-34 Suspicious35-69 Malicious70-100

Why this verdict

+80
Threat intelligence
  • MalwareBazaar known sample: Earthworm
  • Known malicious hash (feed): urlhaus: malware payload (elf)
+13
Static analysis
  • Packed (UPX, confidence 65)
+3
AI analysis
  • 1 evasive checkpoint(s)

Analysis layers

Static ran moved the score
Dynamic ran no points
Threat intel ran moved the score
AI ran moved the score

Sample

TypeFile Linux
MIMEapplication/x-sharedlib

Run conditions

Sandbox OSUbuntu 24.04 (Linux sandbox)
InternetIsolated

Malware family

0 independent sources
malware payload (elf) possible

Named by a single source. Treat it as a lead rather than a classification.

LayerSourceWhat 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.

Signature
UPX(4.22)[LZMA,brute]
Packed: UPX(4.22)[LZMA,brute]
Identity
File
typeELF 32-bit MSB shared object, MIPS, MIPS-I version 1 (SYSV)
size47.6 KB
entropy7.9471
Packing
Packed with UPX
The real code is compressed or encrypted on disk and only appears once the sample runs.
65/100
packer confidence
Detonation is the reliable read here A packed file hides its behaviour from a static pass, so the verdict leans on what it does when it runs.
Evidence 3 signals
  • UPX! magic present
  • High file entropy 7.9471
  • Unusually few sections (0)

ELF header

mips · 32-bit
TypeET_DYN
Machinemips (big-endian)
Entry point0x3a860
Interpreternone (static)
Linkage dynamic stripped
Hardening exec stack

Needed libraries

0

No dynamic dependencies (static binary).

Imported symbols

0
-

YARA 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. $

Stack and decoded strings were not recovered: string emulation failed on this file. Only literal strings present in the file are listed above.

VM console

headless guest

The 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.

VM console

Behavior summary

1 process(es) observed

Launched/var/tmp/e
Execution::Command and Scripting Interpreter [T1059]

MITRE ATT&CK

1 technique
Execution
Command and Scripting Interpreter
T1059

Syscall summary

top calls
execve1

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.

1process

e

1 process
1 process

Attributed activity

0Mechanisms found
90Methods checked
0ATT&CK techniques
NONEHighest severity

Established mechanisms

clean

No persistence established

None of the 90 auto-start methods below were established during this run.

Detection coverage

0 / 90

Every auto-start method checked on this sample, grouped by family. A method with no result is reported clean.

Logon & Startup 22 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
Services & Tasks 9 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
Execution Hijack 17 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
DLL Load Order 12 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
COM & Browser 6 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
Security Providers & Accounts 11 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
Scripting & Applications 9 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
Boot & Firmware 4 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

create 0 write 0 modify 0 delete 0 rename 0

File & registry ops

0 file · 0 registry · sample scope
OperationTargetProcess

No file or registry operations captured.

3 reported a hit 17 answered no 1 could not answer 2 had nothing to check
3Sources with a hit
21Sources queriedof 23 available
486.1kFeed records
1Could not answer

File reputation

2 of 7 listed
SourceChecksResultDetailFeed
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
SourceChecksResultDetailFeed
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
SourceChecksResultDetailFeed
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
SourceChecksResultDetailFeed
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
SourceChecksResultDetailFeed
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

Evasive
Packed / obfuscated payload
Bypass: Capture the unpacked payload from memory and re-analyze it statically.
2 malicious 0 suspicious 1 info
Attribution:Earthworm

Network indicators

1
SeverityTypeIndicatorDescription
info url http://upx.sf.net Extracted from the sample's strings

File indicators

2
SeverityTypeIndicatorDescription
malicious sample_sha256 98c7e13439949f844d2ba77d14d1e6e0267eb0ca97ecb0effe858f01153f5ace Submitted sample (SHA256)
malicious sample_md5 f0b884c8c553462e04fbaa3eaddfd5fb Submitted sample (MD5)

MITRE ATT&CK

1 technique
Execution
Command and Scripting Interpreter
T1059

Sigma detections

0 matches of 2275 rules

The 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/2375

The 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).

Public analyses of this file

1 run
SubmittedEnvironmentVerdictScore
2026-09-07 21:42 Shown below Static analysis Malicious 96/100