darkcomet | 32cd6293bb07914f054fc76511c60a647fb1ccfdd6e1dddcc1a68a2a842a9c3a

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"	svhst.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	svhst.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	svhst.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

Windows Service

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	svhst.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"	svhst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	svhst.exe

Executes dropped EXE 1 IoCs

pid	Process
2388	svhst.exe

Loads dropped DLL 6 IoCs

pid	Process
972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe
972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe
972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe
972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe
972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe
972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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"	svhst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	svhst.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdate.exe"	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 972 set thread context of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86

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 4 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_64eff4f0e19acf9ccf8cdd9d672af690.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhst.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe
972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe
Token: SeIncreaseQuotaPrivilege	2388	svhst.exe
Token: SeSecurityPrivilege	2388	svhst.exe
Token: SeTakeOwnershipPrivilege	2388	svhst.exe
Token: SeLoadDriverPrivilege	2388	svhst.exe
Token: SeSystemProfilePrivilege	2388	svhst.exe
Token: SeSystemtimePrivilege	2388	svhst.exe
Token: SeProfSingleProcessPrivilege	2388	svhst.exe
Token: SeIncBasePriorityPrivilege	2388	svhst.exe
Token: SeCreatePagefilePrivilege	2388	svhst.exe
Token: SeBackupPrivilege	2388	svhst.exe
Token: SeRestorePrivilege	2388	svhst.exe
Token: SeShutdownPrivilege	2388	svhst.exe
Token: SeDebugPrivilege	2388	svhst.exe
Token: SeSystemEnvironmentPrivilege	2388	svhst.exe
Token: SeChangeNotifyPrivilege	2388	svhst.exe
Token: SeRemoteShutdownPrivilege	2388	svhst.exe
Token: SeUndockPrivilege	2388	svhst.exe
Token: SeManageVolumePrivilege	2388	svhst.exe
Token: SeImpersonatePrivilege	2388	svhst.exe
Token: SeCreateGlobalPrivilege	2388	svhst.exe
Token: 33	2388	svhst.exe
Token: 34	2388	svhst.exe
Token: 35	2388	svhst.exe
Token: 36	2388	svhst.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2388	svhst.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 972 wrote to memory of 2484	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	82
PID 972 wrote to memory of 2484	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	82
PID 972 wrote to memory of 2484	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	82
PID 2484 wrote to memory of 4664	2484	vbc.exe	84
PID 2484 wrote to memory of 4664	2484	vbc.exe	84
PID 2484 wrote to memory of 4664	2484	vbc.exe	84
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86
PID 972 wrote to memory of 2388	972	JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe	86

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	svhst.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	svhst.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	svhst.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64eff4f0e19acf9ccf8cdd9d672af690.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:972
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\yibe89-a.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2484
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESA548.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc5FCE433B1CD04754B13E4E4A2F3E9ED8.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4664
- C:\Users\Admin\AppData\Local\Temp\AppLaunch\svhst.exe
  C:\Users\Admin\AppData\Local\Temp\\AppLaunch\svhst.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
  - System policy modification
  PID:2388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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