General
- Target 85120501827837c17abf2c3e1e256fcc0fcb01b0f1a8db9d7218ca7b418a4ac1
- Size 1.1MB
- Sample260917-2hj81ade59
- SHA256 85120501827837c17abf2c3e1e256fcc0fcb01b0f1a8db9d7218ca7b418a4ac1
- MD5 d8d5e7ef7872bcc5ddeb756b8dc63e78
- SHA1 d4482ca897bd6ff64fd67ad943c35cab6fd61e7b
- SHA512 fd949835d2f63d4b93d59e22df41eea77b81df1f2341d9b16ec7c93c3cdf5f803b0e7fbe451458c2dc84651641bbd52c57051b461a1631628303095a26a3521f
- SSDEEP 12288:amc4TfAkdN7TPPl2Eh8Nv6L1FMCubuoGTeh46qTnnCPQeB89hNuD1hOp1i3l10gR:ah4TbLUEhZL/GspeYhkc9Soh2SfwJ
- TLSH T18E3541382EEA1029F177AF7C8AE07596DA6EB6A33707995D10B103C60723B42DDD153E
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
85120501827837c17abf2c3e1e256fcc0fcb01b0f1a8db9d7218ca7b418a4ac1.exe
Resource
win10v2004-20260911-en
Malware Config
Targets
-
- Target 85120501827837c17abf2c3e1e256fcc0fcb01b0f1a8db9d7218ca7b418a4ac1
- Size 1.1MB
- SHA256 85120501827837c17abf2c3e1e256fcc0fcb01b0f1a8db9d7218ca7b418a4ac1
- MD5 d8d5e7ef7872bcc5ddeb756b8dc63e78
- SHA1 d4482ca897bd6ff64fd67ad943c35cab6fd61e7b
- SHA512 fd949835d2f63d4b93d59e22df41eea77b81df1f2341d9b16ec7c93c3cdf5f803b0e7fbe451458c2dc84651641bbd52c57051b461a1631628303095a26a3521f
- SSDEEP 12288:amc4TfAkdN7TPPl2Eh8Nv6L1FMCubuoGTeh46qTnnCPQeB89hNuD1hOp1i3l10gR:ah4TbLUEhZL/GspeYhkc9Soh2SfwJ
- TLSH T18E3541382EEA1029F177AF7C8AE07596DA6EB6A33707995D10B103C60723B42DDD153E
- MD5 SHA1 SHA512 SSDEEP TLSH
-
DCRat payload
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Family: DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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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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UAC bypass
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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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Drops file in Drivers directory
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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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Checks whether UAC is enabled
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Drops file in System32 directory
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SmartAssembly .NET packer
Detects SmartAssembly .NET packer.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1