darkcomet | 9aa13a044e4f85b2c03e8938fd9fc9bfb8a4a8868cd3652ab2fcbff2e03e1ba0

System Information Discovery

Processes:

88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exeexplorer.exewinupdate.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe

Executes dropped EXE 1 IoCs

Processes:

winupdate.exe

pid process

1868 winupdate.exe
Loads dropped DLL 4 IoCs

Processes:

88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exewinupdate.exe

pid process

2036 88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
1868 winupdate.exe
1868 winupdate.exe
1868 winupdate.exe

pid	process
1868	winupdate.exe

pid	process
2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
1868	winupdate.exe
1868	winupdate.exe
1868	winupdate.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exenotepad.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe

description pid process target process

PID 2036 set thread context of 2824 2036 88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe explorer.exe

description	pid	process	target process
PID 2036 set thread context of 2824	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	explorer.exe

UPX packed file 13 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2036-0-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2824-37-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2824-41-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2824-42-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2824-40-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2824-38-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2824-39-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2036-87-0x0000000003F00000-0x0000000003FBB000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe	upx
behavioral1/memory/1868-90-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2036-93-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/1868-101-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2824-102-0x0000000013140000-0x00000000131FB000-memory.dmp	upx

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 5 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:

winupdate.exe88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exenotepad.exeexplorer.exenotepad.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Checks processor information in registry 2 TTPs 12 IoCs

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

Query Registry

System Information Discovery

Processes:

88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exeexplorer.exewinupdate.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

Processes:

88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exeexplorer.exewinupdate.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

explorer.exe

pid process

2824 explorer.exe

pid	process
2824	explorer.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exeexplorer.exewinupdate.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeSecurityPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeBackupPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeRestorePrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeShutdownPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeDebugPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeUndockPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: 33	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: 34	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: 35	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2824	explorer.exe
Token: SeSecurityPrivilege	2824	explorer.exe
Token: SeTakeOwnershipPrivilege	2824	explorer.exe
Token: SeLoadDriverPrivilege	2824	explorer.exe
Token: SeSystemProfilePrivilege	2824	explorer.exe
Token: SeSystemtimePrivilege	2824	explorer.exe
Token: SeProfSingleProcessPrivilege	2824	explorer.exe
Token: SeIncBasePriorityPrivilege	2824	explorer.exe
Token: SeCreatePagefilePrivilege	2824	explorer.exe
Token: SeBackupPrivilege	2824	explorer.exe
Token: SeRestorePrivilege	2824	explorer.exe
Token: SeShutdownPrivilege	2824	explorer.exe
Token: SeDebugPrivilege	2824	explorer.exe
Token: SeSystemEnvironmentPrivilege	2824	explorer.exe
Token: SeChangeNotifyPrivilege	2824	explorer.exe
Token: SeRemoteShutdownPrivilege	2824	explorer.exe
Token: SeUndockPrivilege	2824	explorer.exe
Token: SeManageVolumePrivilege	2824	explorer.exe
Token: SeImpersonatePrivilege	2824	explorer.exe
Token: SeCreateGlobalPrivilege	2824	explorer.exe
Token: 33	2824	explorer.exe
Token: 34	2824	explorer.exe
Token: 35	2824	explorer.exe
Token: SeIncreaseQuotaPrivilege	1868	winupdate.exe
Token: SeSecurityPrivilege	1868	winupdate.exe
Token: SeTakeOwnershipPrivilege	1868	winupdate.exe
Token: SeLoadDriverPrivilege	1868	winupdate.exe
Token: SeSystemProfilePrivilege	1868	winupdate.exe
Token: SeSystemtimePrivilege	1868	winupdate.exe
Token: SeProfSingleProcessPrivilege	1868	winupdate.exe
Token: SeIncBasePriorityPrivilege	1868	winupdate.exe
Token: SeCreatePagefilePrivilege	1868	winupdate.exe
Token: SeBackupPrivilege	1868	winupdate.exe
Token: SeRestorePrivilege	1868	winupdate.exe
Token: SeShutdownPrivilege	1868	winupdate.exe
Token: SeDebugPrivilege	1868	winupdate.exe
Token: SeSystemEnvironmentPrivilege	1868	winupdate.exe
Token: SeChangeNotifyPrivilege	1868	winupdate.exe
Token: SeRemoteShutdownPrivilege	1868	winupdate.exe
Token: SeUndockPrivilege	1868	winupdate.exe
Token: SeManageVolumePrivilege	1868	winupdate.exe

Suspicious use of WriteProcessMemory 60 IoCs

Processes:

88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exeexplorer.exe

description	pid	process	target process
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 1876	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	notepad.exe
PID 2036 wrote to memory of 2824	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	explorer.exe
PID 2036 wrote to memory of 2824	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	explorer.exe
PID 2036 wrote to memory of 2824	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	explorer.exe
PID 2036 wrote to memory of 2824	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	explorer.exe
PID 2036 wrote to memory of 2824	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	explorer.exe
PID 2036 wrote to memory of 2824	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	explorer.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2824 wrote to memory of 2980	2824	explorer.exe	notepad.exe
PID 2036 wrote to memory of 1868	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	winupdate.exe
PID 2036 wrote to memory of 1868	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	winupdate.exe
PID 2036 wrote to memory of 1868	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	winupdate.exe
PID 2036 wrote to memory of 1868	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	winupdate.exe
PID 2036 wrote to memory of 1868	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	winupdate.exe
PID 2036 wrote to memory of 1868	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	winupdate.exe
PID 2036 wrote to memory of 1868	2036	88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe	winupdate.exe

C:\Users\Admin\AppData\Local\Temp\88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\88de5015a6559bfbfedc6929b8449041_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:1876
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Checks BIOS information in registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Windows\SysWOW64\notepad.exe
    C:\Windows\SysWOW64\notepad.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2980
- C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
  "C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:1868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery