General
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Target
JaffaCakes118_03b794dd5a1f48698efaba82986e0c24
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Size
2.5MB
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Sample
250121-lwfvqsyjgn
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MD5
03b794dd5a1f48698efaba82986e0c24
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SHA1
8abe8064f81f8bcd7d04b19dc59bb98333908ce6
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SHA256
35b1fc1278b92658c6e6af725253aaf7a060f69fdc58e3a2a696ca9fbc799c81
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SHA512
36e6956e5a5b92af08658c1770f3da017b63bc630e5533016d67d09abd7870a01033b12d2aa31b0b727ba1e268fe80bf1f35f9152cf2bd058628e379a37cffd7
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SSDEEP
49152:S/SJ5InRTIKCzHuLLiNUlNeHmFpAh+CJdZbSoIfKN5lH9aDHD89t:sSJXZHmOmokpEvJpoI7H9aDj8
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_03b794dd5a1f48698efaba82986e0c24.exe
Resource
win7-20240729-en
Malware Config
Extracted
darkcomet
Guest16
cucu.no-ip.org:1500
DC_MUTEX-23UB63C
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InstallPath
MSDCSC\msdcsc.exe
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gencode
naPTMgVpHACh
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install
true
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offline_keylogger
true
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persistence
false
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reg_key
MicroUpdate
Targets
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Target
JaffaCakes118_03b794dd5a1f48698efaba82986e0c24
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Size
2.5MB
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MD5
03b794dd5a1f48698efaba82986e0c24
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SHA1
8abe8064f81f8bcd7d04b19dc59bb98333908ce6
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SHA256
35b1fc1278b92658c6e6af725253aaf7a060f69fdc58e3a2a696ca9fbc799c81
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SHA512
36e6956e5a5b92af08658c1770f3da017b63bc630e5533016d67d09abd7870a01033b12d2aa31b0b727ba1e268fe80bf1f35f9152cf2bd058628e379a37cffd7
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SSDEEP
49152:S/SJ5InRTIKCzHuLLiNUlNeHmFpAh+CJdZbSoIfKN5lH9aDHD89t:sSJXZHmOmokpEvJpoI7H9aDj8
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Darkcomet family
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Modifies WinLogon for persistence
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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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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
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1