darkcomet | 2ca4803498d7d375a61bfab2a3a4cf7e0eec41d116e50a838791a55b164e0f8c

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"	apache.exe

Modifies firewall policy service 3 TTPs 3 IoCs

Modify Registry

Windows Service

Disable or Modify System Firewall

T1562.004

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

Modify Registry

Windows Service

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

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

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2449540194-3226363261-2578591490-1000\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.

Hidden Files and Directories

T1564.001

pid	Process
2008	attrib.exe
4800	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2449540194-3226363261-2578591490-1000\Control Panel\International\Geo\Nation	apache.exe

Executes dropped EXE 1 IoCs

pid	Process
1716	msdcsc.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2449540194-3226363261-2578591490-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	apache.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2449540194-3226363261-2578591490-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

UPX packed file 33 IoCs

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

upx

resource	yara_rule
behavioral17/memory/3568-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/files/0x0029000000046104-2.dat	upx
behavioral17/memory/3568-5-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-6-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-7-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-9-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-10-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-11-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-15-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-16-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-17-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-22-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-23-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-25-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-27-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-28-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-36-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-37-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-41-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-42-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-43-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-54-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral17/memory/1716-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	apache.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Modifies registry class 1 IoCs

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1716	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3568	apache.exe
Token: SeSecurityPrivilege	3568	apache.exe
Token: SeTakeOwnershipPrivilege	3568	apache.exe
Token: SeLoadDriverPrivilege	3568	apache.exe
Token: SeSystemProfilePrivilege	3568	apache.exe
Token: SeSystemtimePrivilege	3568	apache.exe
Token: SeProfSingleProcessPrivilege	3568	apache.exe
Token: SeIncBasePriorityPrivilege	3568	apache.exe
Token: SeCreatePagefilePrivilege	3568	apache.exe
Token: SeBackupPrivilege	3568	apache.exe
Token: SeRestorePrivilege	3568	apache.exe
Token: SeShutdownPrivilege	3568	apache.exe
Token: SeDebugPrivilege	3568	apache.exe
Token: SeSystemEnvironmentPrivilege	3568	apache.exe
Token: SeChangeNotifyPrivilege	3568	apache.exe
Token: SeRemoteShutdownPrivilege	3568	apache.exe
Token: SeUndockPrivilege	3568	apache.exe
Token: SeManageVolumePrivilege	3568	apache.exe
Token: SeImpersonatePrivilege	3568	apache.exe
Token: SeCreateGlobalPrivilege	3568	apache.exe
Token: 33	3568	apache.exe
Token: 34	3568	apache.exe
Token: 35	3568	apache.exe
Token: 36	3568	apache.exe
Token: SeIncreaseQuotaPrivilege	1716	msdcsc.exe
Token: SeSecurityPrivilege	1716	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1716	msdcsc.exe
Token: SeLoadDriverPrivilege	1716	msdcsc.exe
Token: SeSystemProfilePrivilege	1716	msdcsc.exe
Token: SeSystemtimePrivilege	1716	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1716	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1716	msdcsc.exe
Token: SeCreatePagefilePrivilege	1716	msdcsc.exe
Token: SeBackupPrivilege	1716	msdcsc.exe
Token: SeRestorePrivilege	1716	msdcsc.exe
Token: SeShutdownPrivilege	1716	msdcsc.exe
Token: SeDebugPrivilege	1716	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1716	msdcsc.exe
Token: SeChangeNotifyPrivilege	1716	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1716	msdcsc.exe
Token: SeUndockPrivilege	1716	msdcsc.exe
Token: SeManageVolumePrivilege	1716	msdcsc.exe
Token: SeImpersonatePrivilege	1716	msdcsc.exe
Token: SeCreateGlobalPrivilege	1716	msdcsc.exe
Token: 33	1716	msdcsc.exe
Token: 34	1716	msdcsc.exe
Token: 35	1716	msdcsc.exe
Token: 36	1716	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1716	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 3568 wrote to memory of 4340	3568	apache.exe	81
PID 3568 wrote to memory of 4340	3568	apache.exe	81
PID 3568 wrote to memory of 4340	3568	apache.exe	81
PID 3568 wrote to memory of 1924	3568	apache.exe	83
PID 3568 wrote to memory of 1924	3568	apache.exe	83
PID 3568 wrote to memory of 1924	3568	apache.exe	83
PID 4340 wrote to memory of 2008	4340	cmd.exe	85
PID 4340 wrote to memory of 2008	4340	cmd.exe	85
PID 4340 wrote to memory of 2008	4340	cmd.exe	85
PID 1924 wrote to memory of 4800	1924	cmd.exe	86
PID 1924 wrote to memory of 4800	1924	cmd.exe	86
PID 1924 wrote to memory of 4800	1924	cmd.exe	86
PID 3568 wrote to memory of 1716	3568	apache.exe	87
PID 3568 wrote to memory of 1716	3568	apache.exe	87
PID 3568 wrote to memory of 1716	3568	apache.exe	87
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88
PID 1716 wrote to memory of 2292	1716	msdcsc.exe	88

System policy modification 1 TTPs 3 IoCs

Modify Registry

description	ioc	Process
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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
2008	attrib.exe
4800	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Malware-1-master\apache.exe
"C:\Users\Admin\AppData\Local\Temp\Malware-1-master\apache.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\apache.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4340
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\apache.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2008
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4800
- 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
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:1716
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry