darkcomet | 2c5fd41a76afc0355b5602433a59ab5d3f80aba675300f89ea1212c0ff176cc7

System Information Discovery

Processes:

aa.exe

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

Executes dropped EXE 1 IoCs

Processes:

aa.exe

pid	Process
392	aa.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a59685909758a4a3e67e388281687f43_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	a59685909758a4a3e67e388281687f43_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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:

aa.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aa.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:

aa.exe

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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

Processes:

aa.exe

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

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

aa.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	392	aa.exe
Token: SeSecurityPrivilege	392	aa.exe
Token: SeTakeOwnershipPrivilege	392	aa.exe
Token: SeLoadDriverPrivilege	392	aa.exe
Token: SeSystemProfilePrivilege	392	aa.exe
Token: SeSystemtimePrivilege	392	aa.exe
Token: SeProfSingleProcessPrivilege	392	aa.exe
Token: SeIncBasePriorityPrivilege	392	aa.exe
Token: SeCreatePagefilePrivilege	392	aa.exe
Token: SeBackupPrivilege	392	aa.exe
Token: SeRestorePrivilege	392	aa.exe
Token: SeShutdownPrivilege	392	aa.exe
Token: SeDebugPrivilege	392	aa.exe
Token: SeSystemEnvironmentPrivilege	392	aa.exe
Token: SeChangeNotifyPrivilege	392	aa.exe
Token: SeRemoteShutdownPrivilege	392	aa.exe
Token: SeUndockPrivilege	392	aa.exe
Token: SeManageVolumePrivilege	392	aa.exe
Token: SeImpersonatePrivilege	392	aa.exe
Token: SeCreateGlobalPrivilege	392	aa.exe
Token: 33	392	aa.exe
Token: 34	392	aa.exe
Token: 35	392	aa.exe
Token: 36	392	aa.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a59685909758a4a3e67e388281687f43_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2444 wrote to memory of 392	2444	a59685909758a4a3e67e388281687f43_JaffaCakes118.exe	83
PID 2444 wrote to memory of 392	2444	a59685909758a4a3e67e388281687f43_JaffaCakes118.exe	83
PID 2444 wrote to memory of 392	2444	a59685909758a4a3e67e388281687f43_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\a59685909758a4a3e67e388281687f43_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a59685909758a4a3e67e388281687f43_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\aa.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\aa.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:392

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

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