Analysis
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max time kernel
150s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
17-05-2024 19:37
Behavioral task
behavioral1
Sample
512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe
Resource
win7-20240221-en
General
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Target
512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe
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Size
283KB
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MD5
512665db21883175c7a9af2fbb38a839
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SHA1
997ebd10c77def607dfc4a6510578f2d9a5904ce
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SHA256
f4135f6b427e6836503797ff2f441a4f7ad343ae264396b4a4cd6bf7b295189c
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SHA512
7095b0705a7c6038965e96b96769af8cbe4f065c3146d288e1dd0c3d240dbac827e0192fc49513666316e10af73f73174424eda006bc70ac99122192e0852971
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SSDEEP
6144:8cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PlR:8cWkbgTYWnYnt/IDYhPn
Malware Config
Extracted
darkcomet
Guest16
127.0.0.1:888
DC_MUTEX-WHLS1HP
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InstallPath
MSDCSC\msdcsc.exe
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gencode
gGRRYlfxUJpz
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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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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
512665db21883175c7a9af2fbb38a839_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe -
Drops file in Drivers directory 1 IoCs
Processes:
512665db21883175c7a9af2fbb38a839_JaffaCakes118.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 1784 msdcsc.exe -
Loads dropped DLL 2 IoCs
Processes:
512665db21883175c7a9af2fbb38a839_JaffaCakes118.exepid process 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe -
Processes:
resource yara_rule behavioral1/memory/1704-0-0x0000000000400000-0x00000000004C7000-memory.dmp upx \Users\Admin\Documents\MSDCSC\msdcsc.exe upx behavioral1/memory/1784-14-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/1704-16-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/1784-17-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/1784-18-0x0000000000400000-0x00000000004C7000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
512665db21883175c7a9af2fbb38a839_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 46 IoCs
Processes:
512665db21883175c7a9af2fbb38a839_JaffaCakes118.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeSecurityPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeTakeOwnershipPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeLoadDriverPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeSystemProfilePrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeSystemtimePrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeProfSingleProcessPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeCreatePagefilePrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeBackupPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeRestorePrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeShutdownPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeDebugPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeSystemEnvironmentPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeChangeNotifyPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeRemoteShutdownPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeUndockPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeManageVolumePrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeImpersonatePrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeCreateGlobalPrivilege 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: 33 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: 34 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: 35 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe Token: SeIncreaseQuotaPrivilege 1784 msdcsc.exe Token: SeSecurityPrivilege 1784 msdcsc.exe Token: SeTakeOwnershipPrivilege 1784 msdcsc.exe Token: SeLoadDriverPrivilege 1784 msdcsc.exe Token: SeSystemProfilePrivilege 1784 msdcsc.exe Token: SeSystemtimePrivilege 1784 msdcsc.exe Token: SeProfSingleProcessPrivilege 1784 msdcsc.exe Token: SeIncBasePriorityPrivilege 1784 msdcsc.exe Token: SeCreatePagefilePrivilege 1784 msdcsc.exe Token: SeBackupPrivilege 1784 msdcsc.exe Token: SeRestorePrivilege 1784 msdcsc.exe Token: SeShutdownPrivilege 1784 msdcsc.exe Token: SeDebugPrivilege 1784 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1784 msdcsc.exe Token: SeChangeNotifyPrivilege 1784 msdcsc.exe Token: SeRemoteShutdownPrivilege 1784 msdcsc.exe Token: SeUndockPrivilege 1784 msdcsc.exe Token: SeManageVolumePrivilege 1784 msdcsc.exe Token: SeImpersonatePrivilege 1784 msdcsc.exe Token: SeCreateGlobalPrivilege 1784 msdcsc.exe Token: 33 1784 msdcsc.exe Token: 34 1784 msdcsc.exe Token: 35 1784 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 1784 msdcsc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
512665db21883175c7a9af2fbb38a839_JaffaCakes118.exedescription pid process target process PID 1704 wrote to memory of 1784 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe msdcsc.exe PID 1704 wrote to memory of 1784 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe msdcsc.exe PID 1704 wrote to memory of 1784 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe msdcsc.exe PID 1704 wrote to memory of 1784 1704 512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe msdcsc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\512665db21883175c7a9af2fbb38a839_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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\Users\Admin\Documents\MSDCSC\msdcsc.exeFilesize
283KB
MD5512665db21883175c7a9af2fbb38a839
SHA1997ebd10c77def607dfc4a6510578f2d9a5904ce
SHA256f4135f6b427e6836503797ff2f441a4f7ad343ae264396b4a4cd6bf7b295189c
SHA5127095b0705a7c6038965e96b96769af8cbe4f065c3146d288e1dd0c3d240dbac827e0192fc49513666316e10af73f73174424eda006bc70ac99122192e0852971
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memory/1704-0-0x0000000000400000-0x00000000004C7000-memory.dmpFilesize
796KB
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memory/1704-1-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/1704-12-0x0000000003C20000-0x0000000003CE7000-memory.dmpFilesize
796KB
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memory/1704-16-0x0000000000400000-0x00000000004C7000-memory.dmpFilesize
796KB
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memory/1784-14-0x0000000000400000-0x00000000004C7000-memory.dmpFilesize
796KB
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memory/1784-17-0x0000000000400000-0x00000000004C7000-memory.dmpFilesize
796KB
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memory/1784-18-0x0000000000400000-0x00000000004C7000-memory.dmpFilesize
796KB