darkcomet | 7fb8ec6642b79d7208b3dca64d46c74ce7d0e11adc33522f957a31c6398fe387

Processes:

103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	103c523f834ee4a65b9e4caab49ea763_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

Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

3540 attrib.exe

pid	process
3540	attrib.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3716 msdcsc.exe

pid	process
3716	msdcsc.exe

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\UpdatesDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3492 1664 WerFault.exe notepad.exe

pid	pid_target	process	target process
3492	1664	WerFault.exe	notepad.exe

Modifies registry class 1 IoCs

Processes:

103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

3716 msdcsc.exe

pid	process
3716	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeSecurityPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeBackupPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeRestorePrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeShutdownPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeDebugPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeUndockPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: 33	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: 34	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: 35	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: 36	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3716	msdcsc.exe
Token: SeSecurityPrivilege	3716	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3716	msdcsc.exe
Token: SeLoadDriverPrivilege	3716	msdcsc.exe
Token: SeSystemProfilePrivilege	3716	msdcsc.exe
Token: SeSystemtimePrivilege	3716	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3716	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3716	msdcsc.exe
Token: SeCreatePagefilePrivilege	3716	msdcsc.exe
Token: SeBackupPrivilege	3716	msdcsc.exe
Token: SeRestorePrivilege	3716	msdcsc.exe
Token: SeShutdownPrivilege	3716	msdcsc.exe
Token: SeDebugPrivilege	3716	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3716	msdcsc.exe
Token: SeChangeNotifyPrivilege	3716	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3716	msdcsc.exe
Token: SeUndockPrivilege	3716	msdcsc.exe
Token: SeManageVolumePrivilege	3716	msdcsc.exe
Token: SeImpersonatePrivilege	3716	msdcsc.exe
Token: SeCreateGlobalPrivilege	3716	msdcsc.exe
Token: 33	3716	msdcsc.exe
Token: 34	3716	msdcsc.exe
Token: 35	3716	msdcsc.exe
Token: 36	3716	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

3716 msdcsc.exe

pid	process
3716	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.execmd.exemsdcsc.exe

description	pid	process	target process
PID 4876 wrote to memory of 1504	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe	cmd.exe
PID 4876 wrote to memory of 1504	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe	cmd.exe
PID 4876 wrote to memory of 1504	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe	cmd.exe
PID 1504 wrote to memory of 3540	1504	cmd.exe	attrib.exe
PID 1504 wrote to memory of 3540	1504	cmd.exe	attrib.exe
PID 1504 wrote to memory of 3540	1504	cmd.exe	attrib.exe
PID 4876 wrote to memory of 3716	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe	msdcsc.exe
PID 4876 wrote to memory of 3716	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe	msdcsc.exe
PID 4876 wrote to memory of 3716	4876	103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe	msdcsc.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe
PID 3716 wrote to memory of 1664	3716	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

3540 attrib.exe

pid	process
3540	attrib.exe

C:\Users\Admin\AppData\Local\Temp\103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\103c523f834ee4a65b9e4caab49ea763_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4876

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1504

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3540

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
"C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3716

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1664 -s 372
4⤵
- Program crash
PID:3492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1664 -ip 1664
1⤵
PID:4552

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery