Analysis
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max time kernel
149s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
09-08-2024 21:16
Behavioral task
behavioral1
Sample
8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe
Resource
win7-20240708-en
General
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Target
8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe
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Size
234KB
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MD5
8393b965a4159ab6400d46899c943af1
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SHA1
13f2b5f18cbb2ea6165bcca033d3d17880965a71
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SHA256
a243b4d437e5381ce22852e3bc6f6621dfaf8a618526d37d4e763a43c5634c07
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SHA512
8f5146b3ff5e35e8b9376a568da405bb74f89da8d36d7faba79a32281b25f57e6fa6b93a3b22ab4bc36041025e902e45ffcca18865e74a732d5ff30b9040483e
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SSDEEP
6144:9hqN2gp8/DlfS7kuF8EZZY0W+DBOeq0S98JS9ToS:9h8eDlK7iEFVhq0SeU9ToS
Malware Config
Extracted
darkcomet
Guest16
127.0.0.1:1604
DC_MUTEX-F54S21D
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InstallPath
MSDCSC\msdcsc.exe
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gencode
VzpgEE93M5fr
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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:
8393b965a4159ab6400d46899c943af1_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" 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
8393b965a4159ab6400d46899c943af1_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 1448 msdcsc.exe -
Processes:
resource yara_rule behavioral2/memory/3328-0-0x0000000000400000-0x00000000004BB000-memory.dmp upx C:\Users\Admin\Documents\MSDCSC\msdcsc.exe upx behavioral2/memory/3328-14-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-17-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-19-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-21-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-22-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-23-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-24-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-26-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-27-0x0000000000400000-0x00000000004BB000-memory.dmp upx behavioral2/memory/1448-32-0x0000000000400000-0x00000000004BB000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
8393b965a4159ab6400d46899c943af1_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 8393b965a4159ab6400d46899c943af1_JaffaCakes118.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.
Processes:
msdcsc.exe8393b965a4159ab6400d46899c943af1_JaffaCakes118.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
8393b965a4159ab6400d46899c943af1_JaffaCakes118.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeSecurityPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeTakeOwnershipPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeLoadDriverPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeSystemProfilePrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeSystemtimePrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeProfSingleProcessPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeCreatePagefilePrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeBackupPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeRestorePrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeShutdownPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeDebugPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeSystemEnvironmentPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeChangeNotifyPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeRemoteShutdownPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeUndockPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeManageVolumePrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeImpersonatePrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeCreateGlobalPrivilege 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: 33 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: 34 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: 35 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: 36 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe Token: SeIncreaseQuotaPrivilege 1448 msdcsc.exe Token: SeSecurityPrivilege 1448 msdcsc.exe Token: SeTakeOwnershipPrivilege 1448 msdcsc.exe Token: SeLoadDriverPrivilege 1448 msdcsc.exe Token: SeSystemProfilePrivilege 1448 msdcsc.exe Token: SeSystemtimePrivilege 1448 msdcsc.exe Token: SeProfSingleProcessPrivilege 1448 msdcsc.exe Token: SeIncBasePriorityPrivilege 1448 msdcsc.exe Token: SeCreatePagefilePrivilege 1448 msdcsc.exe Token: SeBackupPrivilege 1448 msdcsc.exe Token: SeRestorePrivilege 1448 msdcsc.exe Token: SeShutdownPrivilege 1448 msdcsc.exe Token: SeDebugPrivilege 1448 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1448 msdcsc.exe Token: SeChangeNotifyPrivilege 1448 msdcsc.exe Token: SeRemoteShutdownPrivilege 1448 msdcsc.exe Token: SeUndockPrivilege 1448 msdcsc.exe Token: SeManageVolumePrivilege 1448 msdcsc.exe Token: SeImpersonatePrivilege 1448 msdcsc.exe Token: SeCreateGlobalPrivilege 1448 msdcsc.exe Token: 33 1448 msdcsc.exe Token: 34 1448 msdcsc.exe Token: 35 1448 msdcsc.exe Token: 36 1448 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 1448 msdcsc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
8393b965a4159ab6400d46899c943af1_JaffaCakes118.exedescription pid process target process PID 3328 wrote to memory of 1448 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe msdcsc.exe PID 3328 wrote to memory of 1448 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe msdcsc.exe PID 3328 wrote to memory of 1448 3328 8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe msdcsc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8393b965a4159ab6400d46899c943af1_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3328 -
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1448
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4336,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4324 /prefetch:81⤵PID:220
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
234KB
MD58393b965a4159ab6400d46899c943af1
SHA113f2b5f18cbb2ea6165bcca033d3d17880965a71
SHA256a243b4d437e5381ce22852e3bc6f6621dfaf8a618526d37d4e763a43c5634c07
SHA5128f5146b3ff5e35e8b9376a568da405bb74f89da8d36d7faba79a32281b25f57e6fa6b93a3b22ab4bc36041025e902e45ffcca18865e74a732d5ff30b9040483e