General
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Target
Mercurial.exe
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Size
3.8MB
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Sample
240905-xfyamaxhmb
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MD5
b6c6a47a70160d6b30eb4d3225f1306f
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SHA1
0878b089fbf5693ea467cfc717ae52c1b34b23d1
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SHA256
68b6e064902280feb25019fdf18be56b92007121ead420c151b3b90c15fd258e
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SHA512
aa13e39e4e55130a1560804a35eb85a36ed666930fa1ecfb959e2656285c3ba718b06510780f123302682ceed4de8d119a7afcdcbf9ffe0d30510f10ff550064
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SSDEEP
98304:lnsmtk2au0fGFljBc0ktzd8dMBv3inJh1w1KxWHMmuyl:5LnFlthsBYMBv3Q0ZsmuK
Static task
static1
Behavioral task
behavioral1
Sample
Mercurial.exe
Resource
win7-20240903-en
Malware Config
Extracted
xworm
3.1
jajaovh.duckdns.org:1605
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Install_directory
%Temp%
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install_file
USB.exe
Targets
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Target
Mercurial.exe
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Size
3.8MB
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MD5
b6c6a47a70160d6b30eb4d3225f1306f
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SHA1
0878b089fbf5693ea467cfc717ae52c1b34b23d1
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SHA256
68b6e064902280feb25019fdf18be56b92007121ead420c151b3b90c15fd258e
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SHA512
aa13e39e4e55130a1560804a35eb85a36ed666930fa1ecfb959e2656285c3ba718b06510780f123302682ceed4de8d119a7afcdcbf9ffe0d30510f10ff550064
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SSDEEP
98304:lnsmtk2au0fGFljBc0ktzd8dMBv3inJh1w1KxWHMmuyl:5LnFlthsBYMBv3Q0ZsmuK
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Detect Xworm Payload
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1