General
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Target
JaffaCakes118_84c7d8597e548caeb258298376c27519
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Size
663KB
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Sample
250321-z47v3szwes
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MD5
84c7d8597e548caeb258298376c27519
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SHA1
b5ccbdb78d80af0c91b8378e9c4a2ee4f779f91c
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SHA256
fdc4c6e08abd577ef436c0efbaeccfec398adf59bd049820110b8028b6129eac
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SHA512
54666ae9801bd95d6482788b8855f85b87aa7d1df00cfd3265407f010f980ad6612b4f7f3c9c444baf06831856431a66b50ccfb3b114d79bc9abdcd7e5e84022
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SSDEEP
12288:3pwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/Y:ZwAcu99lPzvxP+Bsz2XjWTRMQckkIXnA
Behavioral task
behavioral1
Sample
JaffaCakes118_84c7d8597e548caeb258298376c27519.exe
Resource
win7-20240903-en
Malware Config
Extracted
darkcomet
sbs
127.0.0.1:21
DC_MUTEX-D77XKZP
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InstallPath
Windupdt\winupdate.exe
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gencode
cyolL=+r#6rV
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install
true
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offline_keylogger
true
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password
never mind
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persistence
true
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reg_key
winupdater
Targets
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Target
JaffaCakes118_84c7d8597e548caeb258298376c27519
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Size
663KB
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MD5
84c7d8597e548caeb258298376c27519
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SHA1
b5ccbdb78d80af0c91b8378e9c4a2ee4f779f91c
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SHA256
fdc4c6e08abd577ef436c0efbaeccfec398adf59bd049820110b8028b6129eac
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SHA512
54666ae9801bd95d6482788b8855f85b87aa7d1df00cfd3265407f010f980ad6612b4f7f3c9c444baf06831856431a66b50ccfb3b114d79bc9abdcd7e5e84022
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SSDEEP
12288:3pwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/Y:ZwAcu99lPzvxP+Bsz2XjWTRMQckkIXnA
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Darkcomet family
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Modifies WinLogon for persistence
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Windows security bypass
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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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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1