darkcomet | b1cf608027a9237be30a6e5f79d460eb3e7f694796de6e188f1ba071c7dbaa65

System Information Discovery

Processes:

vbc.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	vbc.exe

Loads dropped DLL 3 IoCs

Processes:

953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe

pid	Process
2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe
2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe
2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe = "C:\\Users\\Admin\\AppData\\Roaming\\JNblHUHtVrpSzRDHgHSM\\JNblHUHtVrpSzRDHgHSM\\0.0.0.0\\953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe"	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2216 set thread context of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31

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

Processes:

953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exevbc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

vbc.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	vbc.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	vbc.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

Processes:

vbc.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	vbc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2904	vbc.exe
Token: SeSecurityPrivilege	2904	vbc.exe
Token: SeTakeOwnershipPrivilege	2904	vbc.exe
Token: SeLoadDriverPrivilege	2904	vbc.exe
Token: SeSystemProfilePrivilege	2904	vbc.exe
Token: SeSystemtimePrivilege	2904	vbc.exe
Token: SeProfSingleProcessPrivilege	2904	vbc.exe
Token: SeIncBasePriorityPrivilege	2904	vbc.exe
Token: SeCreatePagefilePrivilege	2904	vbc.exe
Token: SeBackupPrivilege	2904	vbc.exe
Token: SeRestorePrivilege	2904	vbc.exe
Token: SeShutdownPrivilege	2904	vbc.exe
Token: SeDebugPrivilege	2904	vbc.exe
Token: SeSystemEnvironmentPrivilege	2904	vbc.exe
Token: SeChangeNotifyPrivilege	2904	vbc.exe
Token: SeRemoteShutdownPrivilege	2904	vbc.exe
Token: SeUndockPrivilege	2904	vbc.exe
Token: SeManageVolumePrivilege	2904	vbc.exe
Token: SeImpersonatePrivilege	2904	vbc.exe
Token: SeCreateGlobalPrivilege	2904	vbc.exe
Token: 33	2904	vbc.exe
Token: 34	2904	vbc.exe
Token: 35	2904	vbc.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31
PID 2216 wrote to memory of 2904	2216	953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\953f69d97eee1e3c01db1dcc9f663b1e_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Checks BIOS information in registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2904

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

3

System Information Discovery

3

System Location Discovery

T1614

System Language Discovery