General
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Target
GameHackBuild(1).exe
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Size
9.0MB
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Sample
241107-1r69fsyhlm
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MD5
8e11d095b7c613ca3ef9c31f4221d45e
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SHA1
f0a59086724a33139528f40a8fcae4cfb9e73d68
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SHA256
e955d22f7b9ab797366ccbdfb14eba049d69965446b263d31a5834157055ea70
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SHA512
94b6e5b0291ad727aebfc42d48b160f0ef9377259d7bb0d7e59ca092454744a035ac7d23cb84e2d6e02857e4040fbc5eed148abb81f7492990498384f7266351
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SSDEEP
196608:uek5oFaEPX2GgYCCUDQ4yA8/vWOCFidWo+QOovFFoJXz0Bt99OGvFLuyNjA9UCN:Rk5/EP2Gac4yHndWo+bodFgXz29OGNpU
Static task
static1
Behavioral task
behavioral1
Sample
GameHackBuild(1).exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral2
Sample
GameHackBuild(1).exe
Resource
win10ltsc2021-20241023-en
Malware Config
Extracted
orcus
GameHack
31.44.184.52:25350
sudo_06kkh814g4vz7sfklrh1emcow75dz383
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autostart_method
Disable
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enable_keylogger
false
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install_path
%appdata%\Windows\Defender\MpDefenderCoreProtion.exe
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reconnect_delay
10000
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registry_keyname
Sudik
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taskscheduler_taskname
sudik
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watchdog_path
AppData\aga.exe
Targets
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Target
GameHackBuild(1).exe
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Size
9.0MB
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MD5
8e11d095b7c613ca3ef9c31f4221d45e
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SHA1
f0a59086724a33139528f40a8fcae4cfb9e73d68
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SHA256
e955d22f7b9ab797366ccbdfb14eba049d69965446b263d31a5834157055ea70
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SHA512
94b6e5b0291ad727aebfc42d48b160f0ef9377259d7bb0d7e59ca092454744a035ac7d23cb84e2d6e02857e4040fbc5eed148abb81f7492990498384f7266351
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SSDEEP
196608:uek5oFaEPX2GgYCCUDQ4yA8/vWOCFidWo+QOovFFoJXz0Bt99OGvFLuyNjA9UCN:Rk5/EP2Gac4yHndWo+bodFgXz29OGNpU
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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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Orcus family
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Orcus main payload
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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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DCRat payload
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Orcurs Rat Executable
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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 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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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
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
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1