darkcomet | f5d411a692ba80fd2cb08a8620376e3bcd8e87772dafd04b5381ee14f928e592

Processes:

0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Windows Service
T1543.003

Processes:

msdcsc.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2796 msdcsc.exe
Loads dropped DLL 2 IoCs

Processes:

0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe

pid process

2104 0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
2104 0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe

pid	process
2796	msdcsc.exe

pid	process
2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe

UPX packed file 16 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2104-0-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe	upx
behavioral1/memory/2796-15-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2104-14-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-55-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-56-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-57-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-58-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-59-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-61-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-62-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-63-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-64-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-66-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-67-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2796-68-0x0000000000400000-0x00000000004BA000-memory.dmp	upx

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeSecurityPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeBackupPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeRestorePrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeShutdownPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeDebugPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeUndockPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: 33	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: 34	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: 35	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2796	msdcsc.exe
Token: SeSecurityPrivilege	2796	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2796	msdcsc.exe
Token: SeLoadDriverPrivilege	2796	msdcsc.exe
Token: SeSystemProfilePrivilege	2796	msdcsc.exe
Token: SeSystemtimePrivilege	2796	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2796	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2796	msdcsc.exe
Token: SeCreatePagefilePrivilege	2796	msdcsc.exe
Token: SeBackupPrivilege	2796	msdcsc.exe
Token: SeRestorePrivilege	2796	msdcsc.exe
Token: SeShutdownPrivilege	2796	msdcsc.exe
Token: SeDebugPrivilege	2796	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2796	msdcsc.exe
Token: SeChangeNotifyPrivilege	2796	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2796	msdcsc.exe
Token: SeUndockPrivilege	2796	msdcsc.exe
Token: SeManageVolumePrivilege	2796	msdcsc.exe
Token: SeImpersonatePrivilege	2796	msdcsc.exe
Token: SeCreateGlobalPrivilege	2796	msdcsc.exe
Token: 33	2796	msdcsc.exe
Token: 34	2796	msdcsc.exe
Token: 35	2796	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2796 msdcsc.exe

pid	process
2796	msdcsc.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exemsdcsc.exe

description	pid	process	target process
PID 2104 wrote to memory of 2796	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe	msdcsc.exe
PID 2104 wrote to memory of 2796	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe	msdcsc.exe
PID 2104 wrote to memory of 2796	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe	msdcsc.exe
PID 2104 wrote to memory of 2796	2104	0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe	msdcsc.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe
PID 2796 wrote to memory of 2724	2796	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0e9129876661c4123a3fd7fcf76467c0_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2104

C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2796

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2724

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

5

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Credential Access

Discovery

System Information Discovery