darkcomet | bf9e49eaecc0dd3028a01ed883419c9c939f9f2e63f94453b7dd4829f7d95e66

Windows Service

Disable or Modify System Firewall

T1562.004

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

Modifies security service 2 TTPs 1 IoCs

defense_evasion

Modify Registry

Windows Service

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

Windows security bypass 2 TTPs 2 IoCs

defense_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"	wincom.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	wincom.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	wincom.exe

Windows security modification 2 TTPs 2 IoCs

defense_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"	wincom.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	wincom.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe = "C:\\Program Files"	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\rundll32 .exe"	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1184 set thread context of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87

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 2 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	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wincom.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2816	wincom.exe
Token: SeSecurityPrivilege	2816	wincom.exe
Token: SeTakeOwnershipPrivilege	2816	wincom.exe
Token: SeLoadDriverPrivilege	2816	wincom.exe
Token: SeSystemProfilePrivilege	2816	wincom.exe
Token: SeSystemtimePrivilege	2816	wincom.exe
Token: SeProfSingleProcessPrivilege	2816	wincom.exe
Token: SeIncBasePriorityPrivilege	2816	wincom.exe
Token: SeCreatePagefilePrivilege	2816	wincom.exe
Token: SeBackupPrivilege	2816	wincom.exe
Token: SeRestorePrivilege	2816	wincom.exe
Token: SeShutdownPrivilege	2816	wincom.exe
Token: SeDebugPrivilege	2816	wincom.exe
Token: SeSystemEnvironmentPrivilege	2816	wincom.exe
Token: SeChangeNotifyPrivilege	2816	wincom.exe
Token: SeRemoteShutdownPrivilege	2816	wincom.exe
Token: SeUndockPrivilege	2816	wincom.exe
Token: SeManageVolumePrivilege	2816	wincom.exe
Token: SeImpersonatePrivilege	2816	wincom.exe
Token: SeCreateGlobalPrivilege	2816	wincom.exe
Token: 33	2816	wincom.exe
Token: 34	2816	wincom.exe
Token: 35	2816	wincom.exe
Token: 36	2816	wincom.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe
2816	wincom.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87
PID 1184 wrote to memory of 2816	1184	JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b43ba85a03bf4335d1d3909c8efa173a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\winamp\wincom.exe
  C:\Users\Admin\AppData\Local\Temp\\winamp\wincom.exe
  2⤵
  - Modifies firewall policy service
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2816

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Program Files
1⤵
PID:5708

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\rundll32 .exe
1⤵
PID:1120

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Defense Evasion

Impair Defenses

3

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery