General
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Target
E4ExecutorBootstrapper.exe
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Size
93KB
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Sample
240530-kmgv1acb7s
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MD5
71080630edbe7735497056e07c52766e
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SHA1
6a694669f6288dff09fd656c557c2356904c542f
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SHA256
1fe1e9601122a9949efd6b7614f72079f0c11fd0f124c514cbd4857c228f30c6
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SHA512
a5f409a2705afbdf0e991dc9a1a27c067d8276b1aadd04677798cd2d56f6069ce9e147138a514ea664ad33d4059038277ec6ce0530c88571ef8ec306a85a2442
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SSDEEP
1536:46zAA44lhfBv43W5Lfb5GNNcWhKKCyA2FKKRx1+J4P9t2Ub0AbNKcAK1uA4FmzML:46MOl5Jn5LcnA28i104n2Y4cLulFzL
Static task
static1
Behavioral task
behavioral1
Sample
E4ExecutorBootstrapper.exe
Resource
win7-20240508-en
Malware Config
Extracted
xworm
174.117.48.242:1604
127.0.0.1:1604
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Install_directory
%AppData%
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install_file
RegAsm.exe
Targets
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Target
E4ExecutorBootstrapper.exe
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Size
93KB
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MD5
71080630edbe7735497056e07c52766e
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SHA1
6a694669f6288dff09fd656c557c2356904c542f
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SHA256
1fe1e9601122a9949efd6b7614f72079f0c11fd0f124c514cbd4857c228f30c6
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SHA512
a5f409a2705afbdf0e991dc9a1a27c067d8276b1aadd04677798cd2d56f6069ce9e147138a514ea664ad33d4059038277ec6ce0530c88571ef8ec306a85a2442
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SSDEEP
1536:46zAA44lhfBv43W5Lfb5GNNcWhKKCyA2FKKRx1+J4P9t2Ub0AbNKcAK1uA4FmzML:46MOl5Jn5LcnA28i104n2Y4cLulFzL
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Detect Xworm Payload
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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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 BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1