General
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Target
XWorm V5.2.exe
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Size
18.2MB
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Sample
240905-af3h1szfme
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MD5
bdc4539e8060d4db24a69db716a1cec0
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SHA1
71c2485bf1684e73f16a213568efcaa2cb88ce6f
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SHA256
c39cc9aaa0311fd1f6d981e995b608b0d36e464aea09896bd17b41bbd3fc1fe6
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SHA512
b2411923cf5c2e4f96682f73234c409eca38b1712413ec946b1d652a4ddc266376eebe02fd6878dc3fc379eff1307f09407bc06db576c462ded08a839087eb4f
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SSDEEP
393216:s+gzSUAx9phaAUnQeGUPG/uVeZ/K2B1CkcDUDLHK18as0mcvow+Ax:1CwUAQQLIG/5//CFU/qO0T
Static task
static1
Behavioral task
behavioral1
Sample
XWorm V5.2.exe
Resource
win7-20240704-en
Malware Config
Extracted
xworm
uk1.localto.net:3725
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Install_directory
%ProgramData%
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install_file
svchost.exe
Targets
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Target
XWorm V5.2.exe
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Size
18.2MB
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MD5
bdc4539e8060d4db24a69db716a1cec0
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SHA1
71c2485bf1684e73f16a213568efcaa2cb88ce6f
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SHA256
c39cc9aaa0311fd1f6d981e995b608b0d36e464aea09896bd17b41bbd3fc1fe6
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SHA512
b2411923cf5c2e4f96682f73234c409eca38b1712413ec946b1d652a4ddc266376eebe02fd6878dc3fc379eff1307f09407bc06db576c462ded08a839087eb4f
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SSDEEP
393216:s+gzSUAx9phaAUnQeGUPG/uVeZ/K2B1CkcDUDLHK18as0mcvow+Ax:1CwUAQQLIG/5//CFU/qO0T
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Detect Xworm Payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Blocklisted process makes network request
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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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Deletes itself
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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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Drops file in System32 directory
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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
1