darkcomet | 7c6025ff29110c6b7776a839d8f43dd204da199102ef06019cd6d5b8397d5e8b

Processes:

ed0a4a654cfcd7ecdccd1e986346619a_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\\Documents\\MSDCSC\\msdcsc.exe"	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

T1543.003

Processes:

msdcsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

5072 attrib.exe
1140 attrib.exe

pid	process
5072	attrib.exe
1140	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:

ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

4716 msdcsc.exe

pid	process
4716	msdcsc.exe

UPX packed file 18 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4872-0-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
behavioral2/memory/4872-14-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-15-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-18-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-19-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-20-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-21-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-22-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-23-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-24-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-25-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-26-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-27-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-29-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-30-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-31-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4716-32-0x0000000000400000-0x00000000004BA000-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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe

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

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

4716 msdcsc.exe

pid	process
4716	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeSecurityPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeBackupPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeRestorePrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeShutdownPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeDebugPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeUndockPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: 33	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: 34	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: 35	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: 36	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4716	msdcsc.exe
Token: SeSecurityPrivilege	4716	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4716	msdcsc.exe
Token: SeLoadDriverPrivilege	4716	msdcsc.exe
Token: SeSystemProfilePrivilege	4716	msdcsc.exe
Token: SeSystemtimePrivilege	4716	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4716	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4716	msdcsc.exe
Token: SeCreatePagefilePrivilege	4716	msdcsc.exe
Token: SeBackupPrivilege	4716	msdcsc.exe
Token: SeRestorePrivilege	4716	msdcsc.exe
Token: SeShutdownPrivilege	4716	msdcsc.exe
Token: SeDebugPrivilege	4716	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4716	msdcsc.exe
Token: SeChangeNotifyPrivilege	4716	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4716	msdcsc.exe
Token: SeUndockPrivilege	4716	msdcsc.exe
Token: SeManageVolumePrivilege	4716	msdcsc.exe
Token: SeImpersonatePrivilege	4716	msdcsc.exe
Token: SeCreateGlobalPrivilege	4716	msdcsc.exe
Token: 33	4716	msdcsc.exe
Token: 34	4716	msdcsc.exe
Token: 35	4716	msdcsc.exe
Token: 36	4716	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

4716 msdcsc.exe

pid	process
4716	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 4872 wrote to memory of 2508	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	cmd.exe
PID 4872 wrote to memory of 2508	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	cmd.exe
PID 4872 wrote to memory of 2508	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	cmd.exe
PID 4872 wrote to memory of 3964	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	cmd.exe
PID 4872 wrote to memory of 3964	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	cmd.exe
PID 4872 wrote to memory of 3964	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	cmd.exe
PID 4872 wrote to memory of 4716	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	msdcsc.exe
PID 4872 wrote to memory of 4716	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	msdcsc.exe
PID 4872 wrote to memory of 4716	4872	ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe	msdcsc.exe
PID 2508 wrote to memory of 5072	2508	cmd.exe	attrib.exe
PID 2508 wrote to memory of 5072	2508	cmd.exe	attrib.exe
PID 2508 wrote to memory of 5072	2508	cmd.exe	attrib.exe
PID 3964 wrote to memory of 1140	3964	cmd.exe	attrib.exe
PID 3964 wrote to memory of 1140	3964	cmd.exe	attrib.exe
PID 3964 wrote to memory of 1140	3964	cmd.exe	attrib.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe
PID 4716 wrote to memory of 3068	4716	msdcsc.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

Processes:

msdcsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

5072 attrib.exe
1140 attrib.exe

pid	process
5072	attrib.exe
1140	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4872

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:2508

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\ed0a4a654cfcd7ecdccd1e986346619a_JaffaCakes118.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:5072

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:3964

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1140

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4716

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3068

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

7

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