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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
20/01/2025, 21:40
Behavioral task
behavioral1
Sample
JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe
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Size
1.4MB
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MD5
00251f4b9750a066a2356a874c97a144
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SHA1
344a70e8718b74dffc269b6208d90603be6a2f5a
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SHA256
71fdc7cf1ac6d15a985b9ec15ee9ee37f7f6ecbd6e1464788801ed54c12af069
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SHA512
05550170ee32cf77e1bf8a820ba3398a7ef15203eae740bca47e690607c29ad70d49fbca65369dcfa8f175f046a4fe493b860e8c600b54a65f3b6164bd9a53c6
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SSDEEP
24576:LfgYPj74z2zUFAiPdxu3krTjwecrMNjdZKxcs/zuHCswJT0b5HLasIRw:/74z2zMA47jweldZsJW5ruRw
Malware Config
Extracted
darkcomet
Guest16
192.168.174.129:1
DC_MUTEX-20C3W1H
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InstallPath
msdcsc.exe
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gencode
3JKJQw7kEnaK
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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
Signatures
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Darkcomet family
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Desktop\\msdcsc.exe" JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe -
Executes dropped EXE 1 IoCs
pid Process 2600 msdcsc.exe -
Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine msdcsc.exe -
Loads dropped DLL 2 IoCs
pid Process 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe -
resource yara_rule behavioral1/memory/2240-0-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2240-2-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2240-3-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2240-5-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2240-4-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/files/0x00080000000120ff-12.dat themida behavioral1/memory/2600-20-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2240-17-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-23-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-24-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-25-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-26-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-27-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-28-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-30-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-29-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-31-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-32-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-33-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-34-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-35-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-36-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-37-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-38-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-39-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-40-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-41-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-42-0x0000000000400000-0x000000000056E000-memory.dmp themida behavioral1/memory/2600-43-0x0000000000400000-0x000000000056E000-memory.dmp themida -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\msdcsc.exe" JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe 2600 msdcsc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcsc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe 2600 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeSecurityPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeTakeOwnershipPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeLoadDriverPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeSystemProfilePrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeSystemtimePrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeProfSingleProcessPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeIncBasePriorityPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeCreatePagefilePrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeBackupPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeRestorePrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeShutdownPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeDebugPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeSystemEnvironmentPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeChangeNotifyPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeRemoteShutdownPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeUndockPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeManageVolumePrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeImpersonatePrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeCreateGlobalPrivilege 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: 33 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: 34 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: 35 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe Token: SeIncreaseQuotaPrivilege 2600 msdcsc.exe Token: SeSecurityPrivilege 2600 msdcsc.exe Token: SeTakeOwnershipPrivilege 2600 msdcsc.exe Token: SeLoadDriverPrivilege 2600 msdcsc.exe Token: SeSystemProfilePrivilege 2600 msdcsc.exe Token: SeSystemtimePrivilege 2600 msdcsc.exe Token: SeProfSingleProcessPrivilege 2600 msdcsc.exe Token: SeIncBasePriorityPrivilege 2600 msdcsc.exe Token: SeCreatePagefilePrivilege 2600 msdcsc.exe Token: SeBackupPrivilege 2600 msdcsc.exe Token: SeRestorePrivilege 2600 msdcsc.exe Token: SeShutdownPrivilege 2600 msdcsc.exe Token: SeDebugPrivilege 2600 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2600 msdcsc.exe Token: SeChangeNotifyPrivilege 2600 msdcsc.exe Token: SeRemoteShutdownPrivilege 2600 msdcsc.exe Token: SeUndockPrivilege 2600 msdcsc.exe Token: SeManageVolumePrivilege 2600 msdcsc.exe Token: SeImpersonatePrivilege 2600 msdcsc.exe Token: SeCreateGlobalPrivilege 2600 msdcsc.exe Token: 33 2600 msdcsc.exe Token: 34 2600 msdcsc.exe Token: 35 2600 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2600 msdcsc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2240 wrote to memory of 2600 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe 28 PID 2240 wrote to memory of 2600 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe 28 PID 2240 wrote to memory of 2600 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe 28 PID 2240 wrote to memory of 2600 2240 JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe"1⤵
- Modifies WinLogon for persistence
- Identifies Wine through registry keys
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Users\Admin\Desktop\msdcsc.exe"C:\Users\Admin\Desktop\msdcsc.exe"2⤵
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2600
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Network
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
1Replay Monitor
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Downloads
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Filesize
1.4MB
MD500251f4b9750a066a2356a874c97a144
SHA1344a70e8718b74dffc269b6208d90603be6a2f5a
SHA25671fdc7cf1ac6d15a985b9ec15ee9ee37f7f6ecbd6e1464788801ed54c12af069
SHA51205550170ee32cf77e1bf8a820ba3398a7ef15203eae740bca47e690607c29ad70d49fbca65369dcfa8f175f046a4fe493b860e8c600b54a65f3b6164bd9a53c6