General
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Target
FIX.bat
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Size
4.7MB
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Sample
241030-x7deja1ngm
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MD5
840b55c4deeadd584747feeacb71111b
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SHA1
d0ab89817e7e4c9eef250d632ca035b02d06b082
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SHA256
2e1625d3a0354db4f9eca5eb63181d75b7dd08699481604a17ab86dfd76f8ebd
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SHA512
920ed71c2cafc21a91905a9eec9f5fa06d09a30c8d56ce0aa4b8a59d0d044670b73ecc3801c72cd64e6c788b6d299e0fdbed9b9f7b4ea06b114b82b4556cdeb7
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SSDEEP
49152:IBJNcIJz/f3SvXSRl5mHRbKdGm4C2oeacqu:yXcIJzQ2ylwtbeaK
Static task
static1
Behavioral task
behavioral1
Sample
FIX.exe
Resource
win10ltsc2021-20241023-en
Malware Config
Targets
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Target
FIX.bat
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Size
4.7MB
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MD5
840b55c4deeadd584747feeacb71111b
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SHA1
d0ab89817e7e4c9eef250d632ca035b02d06b082
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SHA256
2e1625d3a0354db4f9eca5eb63181d75b7dd08699481604a17ab86dfd76f8ebd
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SHA512
920ed71c2cafc21a91905a9eec9f5fa06d09a30c8d56ce0aa4b8a59d0d044670b73ecc3801c72cd64e6c788b6d299e0fdbed9b9f7b4ea06b114b82b4556cdeb7
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SSDEEP
49152:IBJNcIJz/f3SvXSRl5mHRbKdGm4C2oeacqu:yXcIJzQ2ylwtbeaK
Score10/10-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Dcrat family
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Modifies WinLogon for persistence
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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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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Adds Run key to start application
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1