Analysis
-
max time kernel
120s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
23/10/2024, 17:12
Behavioral task
behavioral1
Sample
b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe
Resource
win7-20241010-en
General
-
Target
b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe
-
Size
964KB
-
MD5
55ef299dc3a3c80f25554923566ac6a0
-
SHA1
55313910c1e6c2c8b9aaf718032abec535827f7b
-
SHA256
b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9
-
SHA512
ecb41fa1838b88205ea28514d2483044e36057a67743e712f8653497e5e24fe56ac9662fd2b05de634eaa945d639cc29e516323e906aff67725420d9800fc557
-
SSDEEP
24576:O/9tT24rAjDLG50Xot0fvF+2rGVvELMR2mA6O:OrUL4taI2O52xL
Malware Config
Extracted
darkcomet
FUD Crypt
wcrat2.no-ip.org:201
DC_MUTEX-F9SVRHH
-
InstallPath
MSDCSC\msdcsc.exe
-
gencode
j6CuqwUwAD5D
-
install
true
-
offline_keylogger
true
-
persistence
true
-
reg_key
msdcsc.exe
Signatures
-
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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe -
resource yara_rule behavioral1/files/0x000800000001957c-57.dat aspack_v212_v242 -
Executes dropped EXE 2 IoCs
pid Process 3024 msdcsc.exe 2628 msdcsc.exe -
Loads dropped DLL 3 IoCs
pid Process 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 3024 msdcsc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\msdcsc.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" msdcsc.exe Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\msdcsc.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe -
AutoIT Executable 10 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/memory/1492-3-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/1492-2-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/1492-1-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/1492-42-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/3024-60-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/3024-59-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/3024-58-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/3024-64-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/3024-106-0x0000000000400000-0x0000000000554000-memory.dmp autoit_exe behavioral1/memory/1492-121-0x0000000003D80000-0x0000000003ED4000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1492 set thread context of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 3024 set thread context of 2628 3024 msdcsc.exe 31 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 4 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 msdcsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeSecurityPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeTakeOwnershipPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeLoadDriverPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeSystemProfilePrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeSystemtimePrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeProfSingleProcessPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeIncBasePriorityPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeCreatePagefilePrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeBackupPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeRestorePrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeShutdownPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeDebugPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeSystemEnvironmentPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeChangeNotifyPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeRemoteShutdownPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeUndockPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeManageVolumePrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeImpersonatePrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeCreateGlobalPrivilege 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: 33 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: 34 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: 35 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe Token: SeIncreaseQuotaPrivilege 2628 msdcsc.exe Token: SeSecurityPrivilege 2628 msdcsc.exe Token: SeTakeOwnershipPrivilege 2628 msdcsc.exe Token: SeLoadDriverPrivilege 2628 msdcsc.exe Token: SeSystemProfilePrivilege 2628 msdcsc.exe Token: SeSystemtimePrivilege 2628 msdcsc.exe Token: SeProfSingleProcessPrivilege 2628 msdcsc.exe Token: SeIncBasePriorityPrivilege 2628 msdcsc.exe Token: SeCreatePagefilePrivilege 2628 msdcsc.exe Token: SeBackupPrivilege 2628 msdcsc.exe Token: SeRestorePrivilege 2628 msdcsc.exe Token: SeShutdownPrivilege 2628 msdcsc.exe Token: SeDebugPrivilege 2628 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2628 msdcsc.exe Token: SeChangeNotifyPrivilege 2628 msdcsc.exe Token: SeRemoteShutdownPrivilege 2628 msdcsc.exe Token: SeUndockPrivilege 2628 msdcsc.exe Token: SeManageVolumePrivilege 2628 msdcsc.exe Token: SeImpersonatePrivilege 2628 msdcsc.exe Token: SeCreateGlobalPrivilege 2628 msdcsc.exe Token: 33 2628 msdcsc.exe Token: 34 2628 msdcsc.exe Token: 35 2628 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2628 msdcsc.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 1492 wrote to memory of 2888 1492 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 29 PID 2888 wrote to memory of 3024 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 30 PID 2888 wrote to memory of 3024 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 30 PID 2888 wrote to memory of 3024 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 30 PID 2888 wrote to memory of 3024 2888 b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe 30 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31 PID 3024 wrote to memory of 2628 3024 msdcsc.exe 31
Processes
-
C:\Users\Admin\AppData\Local\Temp\b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe"C:\Users\Admin\AppData\Local\Temp\b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Users\Admin\AppData\Local\Temp\b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe"C:\Users\Admin\AppData\Local\Temp\b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9N.exe"2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2888 -
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3024 -
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"4⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2628
-
-
-
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
Loading Replay Monitor...
Downloads
-
Filesize
964KB
MD555ef299dc3a3c80f25554923566ac6a0
SHA155313910c1e6c2c8b9aaf718032abec535827f7b
SHA256b8fdffbc9feea0a09a486ef190122efa7defd7a41bf3e3dacdc6ac6c4f5d38d9
SHA512ecb41fa1838b88205ea28514d2483044e36057a67743e712f8653497e5e24fe56ac9662fd2b05de634eaa945d639cc29e516323e906aff67725420d9800fc557
-
Filesize
35KB
MD5f6ad8ad2d6df0a7b2274367c266e1ee2
SHA1755025c72d2042639ef8d735eb45f1a0712afee2
SHA256c94d25a9d3c8b0233c7c69e21fb257103f0bedd618331d7587f1e7b34852c2a4
SHA51234774dffc31c4087f242242f069add248d0622a7148dfb97ceb41d0e387dc72b258f34229a5ff1e7d41f80872c7cfcbf6e0b1c1376259b70f694e2e93228ddfe