darkcomet | 41b5b1ba80f61241e01d85a7e97147b58350bdb246e8a0e96ce59ea9f531feb7

General

Target

9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe
Size

1.1MB
MD5

9f8f24c6fc33ab014ac0e1b2dd94cfd3
SHA1

b837353c764c608ece525b88b6ac352967385808
SHA256

41b5b1ba80f61241e01d85a7e97147b58350bdb246e8a0e96ce59ea9f531feb7
SHA512

14076a3c86b34cd76b75a1791ced232bbcd2ab00a3cd70bf789e52c3108a51f1c878c293d09fc91f593a5642ee3abad1c86a6fe0923c59c6c940acd0264a02b2
SSDEEP

12288:ZNdxlPTkZYg0nUvW9uzPPFhYyzGGzDrslSh/i+nNiiQ4qf9JYV578O922JSkQWID:ZNdxqv1/rsoxO9aXyvT8RYngUDrh

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Executes dropped EXE 1 IoCs

Processes:

vbc.exe

pid	Process
2848	vbc.exe

Loads dropped DLL 1 IoCs

Processes:

9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe

pid	Process
2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_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:

9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\HostProcess = "C:\\Users\\Admin\\AppData\\Roaming\\HostProcess\\9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe"	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2824 set thread context of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30

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:

9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exevbc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe

pid	Process
2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exevbc.exe

description	pid	Process
Token: SeDebugPrivilege	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2848	vbc.exe
Token: SeSecurityPrivilege	2848	vbc.exe
Token: SeTakeOwnershipPrivilege	2848	vbc.exe
Token: SeLoadDriverPrivilege	2848	vbc.exe
Token: SeSystemProfilePrivilege	2848	vbc.exe
Token: SeSystemtimePrivilege	2848	vbc.exe
Token: SeProfSingleProcessPrivilege	2848	vbc.exe
Token: SeIncBasePriorityPrivilege	2848	vbc.exe
Token: SeCreatePagefilePrivilege	2848	vbc.exe
Token: SeBackupPrivilege	2848	vbc.exe
Token: SeRestorePrivilege	2848	vbc.exe
Token: SeShutdownPrivilege	2848	vbc.exe
Token: SeDebugPrivilege	2848	vbc.exe
Token: SeSystemEnvironmentPrivilege	2848	vbc.exe
Token: SeChangeNotifyPrivilege	2848	vbc.exe
Token: SeRemoteShutdownPrivilege	2848	vbc.exe
Token: SeUndockPrivilege	2848	vbc.exe
Token: SeManageVolumePrivilege	2848	vbc.exe
Token: SeImpersonatePrivilege	2848	vbc.exe
Token: SeCreateGlobalPrivilege	2848	vbc.exe
Token: 33	2848	vbc.exe
Token: 34	2848	vbc.exe
Token: 35	2848	vbc.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2848	2824	9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9f8f24c6fc33ab014ac0e1b2dd94cfd3_JaffaCakes118.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:2824
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\vbc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/2824-24-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-1-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-2-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-0-0x0000000074081000-0x0000000074082000-memory.dmp

Filesize
4KB

Download
memory/2848-17-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-29-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-21-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-18-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-15-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-25-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-16-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-27-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-23-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-26-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-13-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-14-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-11-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-9-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-30-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/2848-32-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads