darkcomet | d45568b1f8f868b38cc6e64d58adcf5668b8f5e2460f8719fe9604baa87a03a2

General

Target
4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Size 743KB
Sample240716-b64pfazarn
SHA256 d45568b1f8f868b38cc6e64d58adcf5668b8f5e2460f8719fe9604baa87a03a2
MD5 4c4e3acde545ae4509f3f4eb7d8c8942
SHA1 cda03f93ed400918c1fc8315f576222c0378f78d
SHA512 337d31b624ed144ffd2bc2bb94c991d19e7dff10b8b24256e9819d0527eeafeea57fdb775ad7271068027354a3260f15fd534ef4e4fa3e9de7e92cc55d0cbe94
SSDEEP 12288:Dh2wuk0aZ7PWqdACJAwN/N3VlVOfPzHVe1O8Xn7Sumn:Dh25qqG5NFNOjHVe1J7Pmn
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet evasion persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Disables Task Manager via registry modification
evasion

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe"	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4664 set thread context of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeSecurityPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeBackupPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeRestorePrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeShutdownPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeDebugPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeUndockPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: 33	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: 34	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: 35	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
Token: 36	3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
3948	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85
PID 4664 wrote to memory of 3948	4664	4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Users\Admin\AppData\Local\Temp\4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\4c4e3acde545ae4509f3f4eb7d8c8942_JaffaCakes118.exe
  2⤵
  - Checks BIOS information in registry
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3948