darkcomet | 49a42a0754dcc1257144521dc24378018cc63ede353ec2d92e3c96113bd845db

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\Windupdt\\winupdate.exe"	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.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	winupdate.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	winupdate.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	winupdate.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"	winupdate.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"	winupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winupdate.exe

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
556	attrib.exe
2820	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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4152	winupdate.exe
3464	winupdate.exe

UPX packed file 29 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1584-2-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/1584-4-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/1584-5-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/1584-7-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/1584-6-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/1584-8-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/1584-70-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-76-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-77-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-82-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-81-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-80-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-79-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-78-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-83-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-84-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-85-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-86-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-87-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-88-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-89-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-90-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-91-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-92-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-93-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-94-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-95-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-96-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/3464-97-0x0000000000400000-0x00000000004BA000-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"	winupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winupdate.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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\Documents\\Windupdt\\winupdate.exe"	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\Documents\\Windupdt\\winupdate.exe"	winupdate.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1080 set thread context of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 4152 set thread context of 3464	4152	winupdate.exe	101

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 10 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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.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	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4996	cmd.exe
4556	PING.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4556	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3464	winupdate.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeSecurityPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeBackupPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeRestorePrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeShutdownPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeDebugPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeUndockPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: 33	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: 34	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: 35	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: 36	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3464	winupdate.exe
Token: SeSecurityPrivilege	3464	winupdate.exe
Token: SeTakeOwnershipPrivilege	3464	winupdate.exe
Token: SeLoadDriverPrivilege	3464	winupdate.exe
Token: SeSystemProfilePrivilege	3464	winupdate.exe
Token: SeSystemtimePrivilege	3464	winupdate.exe
Token: SeProfSingleProcessPrivilege	3464	winupdate.exe
Token: SeIncBasePriorityPrivilege	3464	winupdate.exe
Token: SeCreatePagefilePrivilege	3464	winupdate.exe
Token: SeBackupPrivilege	3464	winupdate.exe
Token: SeRestorePrivilege	3464	winupdate.exe
Token: SeShutdownPrivilege	3464	winupdate.exe
Token: SeDebugPrivilege	3464	winupdate.exe
Token: SeSystemEnvironmentPrivilege	3464	winupdate.exe
Token: SeChangeNotifyPrivilege	3464	winupdate.exe
Token: SeRemoteShutdownPrivilege	3464	winupdate.exe
Token: SeUndockPrivilege	3464	winupdate.exe
Token: SeManageVolumePrivilege	3464	winupdate.exe
Token: SeImpersonatePrivilege	3464	winupdate.exe
Token: SeCreateGlobalPrivilege	3464	winupdate.exe
Token: 33	3464	winupdate.exe
Token: 34	3464	winupdate.exe
Token: 35	3464	winupdate.exe
Token: 36	3464	winupdate.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
4152	winupdate.exe
3464	winupdate.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 1080 wrote to memory of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 1080 wrote to memory of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 1080 wrote to memory of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 1080 wrote to memory of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 1080 wrote to memory of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 1080 wrote to memory of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 1080 wrote to memory of 1584	1080	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	86
PID 1584 wrote to memory of 1440	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	87
PID 1584 wrote to memory of 1440	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	87
PID 1584 wrote to memory of 1440	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	87
PID 1584 wrote to memory of 2736	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	89
PID 1584 wrote to memory of 2736	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	89
PID 1584 wrote to memory of 2736	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	89
PID 1440 wrote to memory of 556	1440	cmd.exe	91
PID 1440 wrote to memory of 556	1440	cmd.exe	91
PID 1440 wrote to memory of 556	1440	cmd.exe	91
PID 2736 wrote to memory of 2820	2736	cmd.exe	92
PID 2736 wrote to memory of 2820	2736	cmd.exe	92
PID 2736 wrote to memory of 2820	2736	cmd.exe	92
PID 1584 wrote to memory of 4152	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	95
PID 1584 wrote to memory of 4152	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	95
PID 1584 wrote to memory of 4152	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	95
PID 1584 wrote to memory of 4996	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	96
PID 1584 wrote to memory of 4996	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	96
PID 1584 wrote to memory of 4996	1584	d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe	96
PID 4996 wrote to memory of 4556	4996	cmd.exe	98
PID 4996 wrote to memory of 4556	4996	cmd.exe	98
PID 4996 wrote to memory of 4556	4996	cmd.exe	98
PID 4152 wrote to memory of 3464	4152	winupdate.exe	101
PID 4152 wrote to memory of 3464	4152	winupdate.exe	101
PID 4152 wrote to memory of 3464	4152	winupdate.exe	101
PID 4152 wrote to memory of 3464	4152	winupdate.exe	101
PID 4152 wrote to memory of 3464	4152	winupdate.exe	101
PID 4152 wrote to memory of 3464	4152	winupdate.exe	101
PID 4152 wrote to memory of 3464	4152	winupdate.exe	101
PID 4152 wrote to memory of 3464	4152	winupdate.exe	101

Views/modifies file attributes 1 TTPs 2 IoCs

Hidden Files and Directories

T1564.001

pid	Process
556	attrib.exe
2820	attrib.exe

C:\Users\Admin\AppData\Local\Temp\d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Users\Admin\AppData\Local\Temp\d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe
  2⤵
  - 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:1584
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1440
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:556
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2736
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2820
- - C:\Users\Admin\Documents\Windupdt\winupdate.exe
    "C:\Users\Admin\Documents\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4152
  - - C:\Users\Admin\Documents\Windupdt\winupdate.exe
      C:\Users\Admin\Documents\Windupdt\winupdate.exe
      4⤵
      Modifies firewall policy service
      Modifies security service
      Windows security bypass
      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
      PID:3464
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\d3eec64b1f7e92a58456fb60f91763d6_JaffaCakes118.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4996
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 5
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4556

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