darkcomet | 802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94

Processes:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.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\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

Modify Existing Service

T1031

Processes:

msdcsc.exeiexplore.exe

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

Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Disables Task Manager via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2760 msdcsc.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

pid	process
2760	msdcsc.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:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\International\Geo\Nation	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

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

T1060

Modify Registry

Processes:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exemsdcsc.exeiexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Owo Para = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Owo Para = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Owo Para = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 2760 set thread context of 3500 2760 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 2760 set thread context of 3500	2760	msdcsc.exe	iexplore.exe

Modifies registry class 1 IoCs

Processes:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeSecurityPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeTakeOwnershipPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeLoadDriverPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeSystemProfilePrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeSystemtimePrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeProfSingleProcessPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeIncBasePriorityPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeCreatePagefilePrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeBackupPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeRestorePrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeShutdownPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeDebugPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeSystemEnvironmentPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeChangeNotifyPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeRemoteShutdownPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeUndockPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeManageVolumePrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeImpersonatePrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeCreateGlobalPrivilege	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: 33	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: 34	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: 35	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: 36	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
Token: SeIncreaseQuotaPrivilege	2760	msdcsc.exe
Token: SeSecurityPrivilege	2760	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2760	msdcsc.exe
Token: SeLoadDriverPrivilege	2760	msdcsc.exe
Token: SeSystemProfilePrivilege	2760	msdcsc.exe
Token: SeSystemtimePrivilege	2760	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2760	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2760	msdcsc.exe
Token: SeCreatePagefilePrivilege	2760	msdcsc.exe
Token: SeBackupPrivilege	2760	msdcsc.exe
Token: SeRestorePrivilege	2760	msdcsc.exe
Token: SeShutdownPrivilege	2760	msdcsc.exe
Token: SeDebugPrivilege	2760	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2760	msdcsc.exe
Token: SeChangeNotifyPrivilege	2760	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2760	msdcsc.exe
Token: SeUndockPrivilege	2760	msdcsc.exe
Token: SeManageVolumePrivilege	2760	msdcsc.exe
Token: SeImpersonatePrivilege	2760	msdcsc.exe
Token: SeCreateGlobalPrivilege	2760	msdcsc.exe
Token: 33	2760	msdcsc.exe
Token: 34	2760	msdcsc.exe
Token: 35	2760	msdcsc.exe
Token: 36	2760	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	3500	iexplore.exe
Token: SeSecurityPrivilege	3500	iexplore.exe
Token: SeTakeOwnershipPrivilege	3500	iexplore.exe
Token: SeLoadDriverPrivilege	3500	iexplore.exe
Token: SeSystemProfilePrivilege	3500	iexplore.exe
Token: SeSystemtimePrivilege	3500	iexplore.exe
Token: SeProfSingleProcessPrivilege	3500	iexplore.exe
Token: SeIncBasePriorityPrivilege	3500	iexplore.exe
Token: SeCreatePagefilePrivilege	3500	iexplore.exe
Token: SeBackupPrivilege	3500	iexplore.exe
Token: SeRestorePrivilege	3500	iexplore.exe
Token: SeShutdownPrivilege	3500	iexplore.exe
Token: SeDebugPrivilege	3500	iexplore.exe
Token: SeSystemEnvironmentPrivilege	3500	iexplore.exe
Token: SeChangeNotifyPrivilege	3500	iexplore.exe
Token: SeRemoteShutdownPrivilege	3500	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

3500 iexplore.exe

pid	process
3500	iexplore.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.execmd.execmd.exemsdcsc.exeiexplore.exe

description	pid	process	target process
PID 2840 wrote to memory of 3908	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 2840 wrote to memory of 3908	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 2840 wrote to memory of 3908	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 2840 wrote to memory of 4040	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 2840 wrote to memory of 4040	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 2840 wrote to memory of 4040	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	cmd.exe
PID 3908 wrote to memory of 2952	3908	cmd.exe	attrib.exe
PID 3908 wrote to memory of 2952	3908	cmd.exe	attrib.exe
PID 3908 wrote to memory of 2952	3908	cmd.exe	attrib.exe
PID 4040 wrote to memory of 1124	4040	cmd.exe	attrib.exe
PID 4040 wrote to memory of 1124	4040	cmd.exe	attrib.exe
PID 4040 wrote to memory of 1124	4040	cmd.exe	attrib.exe
PID 2840 wrote to memory of 2760	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	msdcsc.exe
PID 2840 wrote to memory of 2760	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	msdcsc.exe
PID 2840 wrote to memory of 2760	2840	802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe	msdcsc.exe
PID 2760 wrote to memory of 3500	2760	msdcsc.exe	iexplore.exe
PID 2760 wrote to memory of 3500	2760	msdcsc.exe	iexplore.exe
PID 2760 wrote to memory of 3500	2760	msdcsc.exe	iexplore.exe
PID 2760 wrote to memory of 3500	2760	msdcsc.exe	iexplore.exe
PID 2760 wrote to memory of 3500	2760	msdcsc.exe	iexplore.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.exe	notepad.exe
PID 3500 wrote to memory of 1740	3500	iexplore.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
T1158

Processes:

attrib.exeattrib.exe

pid process

2952 attrib.exe
1124 attrib.exe

pid	process
2952	attrib.exe
1124	attrib.exe

C:\Users\Admin\AppData\Local\Temp\802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe
"C:\Users\Admin\AppData\Local\Temp\802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.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:2840

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3908

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\802b67f035f6b75aa99b4c04c7701ca80f132ec5007d066f04c174e304423f94.exe" +s +h
3⤵
- Views/modifies file attributes
PID:2952

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:4040

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:1124

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2760

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Modifies security service
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3500

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:1740

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Modify Existing Service

T1031

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

6

Disabling Security Tools

T1089

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery