darkcomet | e4c9e8116827030fee7a80a2d2fbbadb2f0b0fc353dbe8833e57f7852ea86810

Processes:

service.exe

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

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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

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

1960 attrib.exe
1576 attrib.exe
Executes dropped EXE 8 IoCs

Processes:

service.exeservice.exeservice.exeSERVICES.EXEWINDOWSLOGIN.EXEmsdcsc.exemsdcsc.exemsdcsc.exe

pid process

2764 service.exe
2700 service.exe
2844 service.exe
1620 SERVICES.EXE
1824 WINDOWSLOGIN.EXE
1376 msdcsc.exe
2016 msdcsc.exe
2116 msdcsc.exe

pid	process
1960	attrib.exe
1576	attrib.exe

pid	process
2764	service.exe
2700	service.exe
2844	service.exe
1620	SERVICES.EXE
1824	WINDOWSLOGIN.EXE
1376	msdcsc.exe
2016	msdcsc.exe
2116	msdcsc.exe

Loads dropped DLL 12 IoCs

Processes:

085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exeservice.exeservice.exe

pid	process
2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe
2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe
2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe
2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe
2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe
2764	service.exe
2844	service.exe
2844	service.exe
2844	service.exe
2844	service.exe
2844	service.exe
2844	service.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\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 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

service.exemsdcsc.exereg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe"	service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\service.exe"	reg.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

service.exeservice.exemsdcsc.exemsdcsc.exe

description	pid	process	target process
PID 2764 set thread context of 2700	2764	service.exe	service.exe
PID 2700 set thread context of 2844	2700	service.exe	service.exe
PID 1376 set thread context of 2016	1376	msdcsc.exe	msdcsc.exe
PID 2016 set thread context of 2116	2016	msdcsc.exe	msdcsc.exe

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

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

msdcsc.exedw20.exe

pid process

2116 msdcsc.exe
2956 dw20.exe

pid	process
2116	msdcsc.exe
2956	dw20.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

service.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2844	service.exe
Token: SeSecurityPrivilege	2844	service.exe
Token: SeTakeOwnershipPrivilege	2844	service.exe
Token: SeLoadDriverPrivilege	2844	service.exe
Token: SeSystemProfilePrivilege	2844	service.exe
Token: SeSystemtimePrivilege	2844	service.exe
Token: SeProfSingleProcessPrivilege	2844	service.exe
Token: SeIncBasePriorityPrivilege	2844	service.exe
Token: SeCreatePagefilePrivilege	2844	service.exe
Token: SeBackupPrivilege	2844	service.exe
Token: SeRestorePrivilege	2844	service.exe
Token: SeShutdownPrivilege	2844	service.exe
Token: SeDebugPrivilege	2844	service.exe
Token: SeSystemEnvironmentPrivilege	2844	service.exe
Token: SeChangeNotifyPrivilege	2844	service.exe
Token: SeRemoteShutdownPrivilege	2844	service.exe
Token: SeUndockPrivilege	2844	service.exe
Token: SeManageVolumePrivilege	2844	service.exe
Token: SeImpersonatePrivilege	2844	service.exe
Token: SeCreateGlobalPrivilege	2844	service.exe
Token: 33	2844	service.exe
Token: 34	2844	service.exe
Token: 35	2844	service.exe
Token: SeIncreaseQuotaPrivilege	2116	msdcsc.exe
Token: SeSecurityPrivilege	2116	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2116	msdcsc.exe
Token: SeLoadDriverPrivilege	2116	msdcsc.exe
Token: SeSystemProfilePrivilege	2116	msdcsc.exe
Token: SeSystemtimePrivilege	2116	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2116	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2116	msdcsc.exe
Token: SeCreatePagefilePrivilege	2116	msdcsc.exe
Token: SeBackupPrivilege	2116	msdcsc.exe
Token: SeRestorePrivilege	2116	msdcsc.exe
Token: SeShutdownPrivilege	2116	msdcsc.exe
Token: SeDebugPrivilege	2116	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2116	msdcsc.exe
Token: SeChangeNotifyPrivilege	2116	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2116	msdcsc.exe
Token: SeUndockPrivilege	2116	msdcsc.exe
Token: SeManageVolumePrivilege	2116	msdcsc.exe
Token: SeImpersonatePrivilege	2116	msdcsc.exe
Token: SeCreateGlobalPrivilege	2116	msdcsc.exe
Token: 33	2116	msdcsc.exe
Token: 34	2116	msdcsc.exe
Token: 35	2116	msdcsc.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exeservice.exeservice.exemsdcsc.exemsdcsc.exemsdcsc.exe

pid process

2164 085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe
2764 service.exe
2700 service.exe
1376 msdcsc.exe
2016 msdcsc.exe
2116 msdcsc.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.execmd.exeservice.exeservice.exeservice.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 2164 wrote to memory of 2480	2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe	cmd.exe
PID 2164 wrote to memory of 2480	2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe	cmd.exe
PID 2164 wrote to memory of 2480	2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe	cmd.exe
PID 2164 wrote to memory of 2480	2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe	cmd.exe
PID 2480 wrote to memory of 2736	2480	cmd.exe	reg.exe
PID 2480 wrote to memory of 2736	2480	cmd.exe	reg.exe
PID 2480 wrote to memory of 2736	2480	cmd.exe	reg.exe
PID 2480 wrote to memory of 2736	2480	cmd.exe	reg.exe
PID 2164 wrote to memory of 2764	2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe	service.exe
PID 2164 wrote to memory of 2764	2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe	service.exe
PID 2164 wrote to memory of 2764	2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe	service.exe
PID 2164 wrote to memory of 2764	2164	085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2764 wrote to memory of 2700	2764	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2700 wrote to memory of 2844	2700	service.exe	service.exe
PID 2844 wrote to memory of 2888	2844	service.exe	cmd.exe
PID 2844 wrote to memory of 2888	2844	service.exe	cmd.exe
PID 2844 wrote to memory of 2888	2844	service.exe	cmd.exe
PID 2844 wrote to memory of 2888	2844	service.exe	cmd.exe
PID 2844 wrote to memory of 3040	2844	service.exe	cmd.exe
PID 2844 wrote to memory of 3040	2844	service.exe	cmd.exe
PID 2844 wrote to memory of 3040	2844	service.exe	cmd.exe
PID 2844 wrote to memory of 3040	2844	service.exe	cmd.exe
PID 2844 wrote to memory of 1620	2844	service.exe	SERVICES.EXE
PID 2844 wrote to memory of 1620	2844	service.exe	SERVICES.EXE
PID 2844 wrote to memory of 1620	2844	service.exe	SERVICES.EXE
PID 2844 wrote to memory of 1620	2844	service.exe	SERVICES.EXE
PID 2844 wrote to memory of 1824	2844	service.exe	WINDOWSLOGIN.EXE
PID 2844 wrote to memory of 1824	2844	service.exe	WINDOWSLOGIN.EXE
PID 2844 wrote to memory of 1824	2844	service.exe	WINDOWSLOGIN.EXE
PID 2844 wrote to memory of 1824	2844	service.exe	WINDOWSLOGIN.EXE
PID 2888 wrote to memory of 1960	2888	cmd.exe	attrib.exe
PID 2888 wrote to memory of 1960	2888	cmd.exe	attrib.exe
PID 2888 wrote to memory of 1960	2888	cmd.exe	attrib.exe
PID 2888 wrote to memory of 1960	2888	cmd.exe	attrib.exe
PID 3040 wrote to memory of 1576	3040	cmd.exe	attrib.exe
PID 3040 wrote to memory of 1576	3040	cmd.exe	attrib.exe
PID 3040 wrote to memory of 1576	3040	cmd.exe	attrib.exe
PID 3040 wrote to memory of 1576	3040	cmd.exe	attrib.exe
PID 2844 wrote to memory of 1376	2844	service.exe	msdcsc.exe
PID 2844 wrote to memory of 1376	2844	service.exe	msdcsc.exe
PID 2844 wrote to memory of 1376	2844	service.exe	msdcsc.exe
PID 2844 wrote to memory of 1376	2844	service.exe	msdcsc.exe
PID 1376 wrote to memory of 2016	1376	msdcsc.exe	msdcsc.exe
PID 1376 wrote to memory of 2016	1376	msdcsc.exe	msdcsc.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

1960 attrib.exe
1576 attrib.exe

pid	process
1960	attrib.exe
1576	attrib.exe

C:\Users\Admin\AppData\Local\Temp\085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\085a4a5430ccb482aaf5e1f428b2e035_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2164

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\259399632.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:2480

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Microsoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\service.exe" /f
3⤵
- Adds Run key to start application
PID:2736

C:\Users\Admin\AppData\Roaming\Microsoft\service.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\service.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2764

C:\Users\Admin\AppData\Roaming\Microsoft\service.exe
C:\Users\Admin\AppData\Roaming\Microsoft\service.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2700

C:\Users\Admin\AppData\Roaming\Microsoft\service.exe
4⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2844

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
5⤵
- Suspicious use of WriteProcessMemory
PID:2888

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Roaming\Microsoft" +s +h
6⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1960

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
5⤵
- Suspicious use of WriteProcessMemory
PID:3040

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Roaming\Microsoft" +s +h
6⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1576

C:\Users\Admin\AppData\Local\Temp\SERVICES.EXE
"C:\Users\Admin\AppData\Local\Temp\SERVICES.EXE"
5⤵
- Executes dropped EXE
PID:1620

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
dw20.exe -x -s 820
6⤵
PID:1704

C:\Users\Admin\AppData\Local\Temp\WINDOWSLOGIN.EXE
"C:\Users\Admin\AppData\Local\Temp\WINDOWSLOGIN.EXE"
5⤵
- Executes dropped EXE
PID:1824

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
dw20.exe -x -s 828
6⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:2956

C:\MSDCSC\msdcsc.exe
"C:\MSDCSC\msdcsc.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1376

C:\MSDCSC\msdcsc.exe
C:\MSDCSC\msdcsc.exe
6⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
PID:2016

C:\MSDCSC\msdcsc.exe
7⤵
- Modifies firewall policy service
- 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
- System policy modification
PID:2116

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

3

T1562

Disable or Modify Tools

T1562.001

Disable or Modify System Firewall

T1562.004

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Information Discovery