darkcomet | 81e0a5bccf4405e1172f3ab2efd7b992112bb6e67e1ae2414ed487f7a9d55604

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\MSDCSC\\msdcsc.exe"	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe

Modifies firewall policy service 3 TTPs 6 IoCs

Modify Registry

Windows Service

Disable or Modify System Firewall

T1562.004

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

Modifies security service 2 TTPs 2 IoCs

Modify Registry

Windows Service

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 4 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"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	iexplore.exe
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 2 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	iexplore.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
2648	attrib.exe
3492	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1424	msdcsc.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2332-0-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/files/0x000800000002340b-6.dat	upx
behavioral2/memory/1424-64-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/2332-63-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4788-66-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/1424-68-0x0000000000400000-0x00000000004BA000-memory.dmp	upx

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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSDCSC\\msdcsc.exe"	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1424 set thread context of 4788	1424	msdcsc.exe	93

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\MSDCSC\msdcsc.exe	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
File opened for modification	C:\Windows\MSDCSC\	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
File created	C:\Windows\MSDCSC\msdcsc.exe	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe

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 8 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	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	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4788	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeSecurityPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeBackupPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeRestorePrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeShutdownPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeDebugPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeUndockPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: 33	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: 34	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: 35	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: 36	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1424	msdcsc.exe
Token: SeSecurityPrivilege	1424	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1424	msdcsc.exe
Token: SeLoadDriverPrivilege	1424	msdcsc.exe
Token: SeSystemProfilePrivilege	1424	msdcsc.exe
Token: SeSystemtimePrivilege	1424	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1424	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1424	msdcsc.exe
Token: SeCreatePagefilePrivilege	1424	msdcsc.exe
Token: SeBackupPrivilege	1424	msdcsc.exe
Token: SeRestorePrivilege	1424	msdcsc.exe
Token: SeShutdownPrivilege	1424	msdcsc.exe
Token: SeDebugPrivilege	1424	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1424	msdcsc.exe
Token: SeChangeNotifyPrivilege	1424	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1424	msdcsc.exe
Token: SeUndockPrivilege	1424	msdcsc.exe
Token: SeManageVolumePrivilege	1424	msdcsc.exe
Token: SeImpersonatePrivilege	1424	msdcsc.exe
Token: SeCreateGlobalPrivilege	1424	msdcsc.exe
Token: 33	1424	msdcsc.exe
Token: 34	1424	msdcsc.exe
Token: 35	1424	msdcsc.exe
Token: 36	1424	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	4788	iexplore.exe
Token: SeSecurityPrivilege	4788	iexplore.exe
Token: SeTakeOwnershipPrivilege	4788	iexplore.exe
Token: SeLoadDriverPrivilege	4788	iexplore.exe
Token: SeSystemProfilePrivilege	4788	iexplore.exe
Token: SeSystemtimePrivilege	4788	iexplore.exe
Token: SeProfSingleProcessPrivilege	4788	iexplore.exe
Token: SeIncBasePriorityPrivilege	4788	iexplore.exe
Token: SeCreatePagefilePrivilege	4788	iexplore.exe
Token: SeBackupPrivilege	4788	iexplore.exe
Token: SeRestorePrivilege	4788	iexplore.exe
Token: SeShutdownPrivilege	4788	iexplore.exe
Token: SeDebugPrivilege	4788	iexplore.exe
Token: SeSystemEnvironmentPrivilege	4788	iexplore.exe
Token: SeChangeNotifyPrivilege	4788	iexplore.exe
Token: SeRemoteShutdownPrivilege	4788	iexplore.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 4924	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	85
PID 2332 wrote to memory of 4924	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	85
PID 2332 wrote to memory of 4924	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	85
PID 2332 wrote to memory of 208	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	86
PID 2332 wrote to memory of 208	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	86
PID 2332 wrote to memory of 208	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	86
PID 208 wrote to memory of 3492	208	cmd.exe	89
PID 208 wrote to memory of 3492	208	cmd.exe	89
PID 208 wrote to memory of 3492	208	cmd.exe	89
PID 4924 wrote to memory of 2648	4924	cmd.exe	90
PID 4924 wrote to memory of 2648	4924	cmd.exe	90
PID 4924 wrote to memory of 2648	4924	cmd.exe	90
PID 2332 wrote to memory of 1424	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	91
PID 2332 wrote to memory of 1424	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	91
PID 2332 wrote to memory of 1424	2332	cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe	91
PID 1424 wrote to memory of 4788	1424	msdcsc.exe	93
PID 1424 wrote to memory of 4788	1424	msdcsc.exe	93
PID 1424 wrote to memory of 4788	1424	msdcsc.exe	93
PID 1424 wrote to memory of 4788	1424	msdcsc.exe	93
PID 1424 wrote to memory of 4788	1424	msdcsc.exe	93
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94
PID 4788 wrote to memory of 2244	4788	iexplore.exe	94

System policy modification 1 TTPs 3 IoCs

Modify Registry

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

Hidden Files and Directories

T1564.001

pid	Process
3492	attrib.exe
2648	attrib.exe

C:\Users\Admin\AppData\Local\Temp\cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4924
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\cb2641aa837e88ff4ccfbf3b63433f50_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:208
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3492
- C:\Windows\MSDCSC\msdcsc.exe
  "C:\Windows\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 use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:1424
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies firewall policy service
    - Modifies security service
    - Windows security bypass
    - Disables RegEdit via registry modification
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4788
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2244

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