darkcomet | 519944f31dffe89922b040ed260a5c5c425e752ffa75cc1175998a1abe6a3616

General

Target

JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe
Size

1.0MB
MD5

196a23b56d80e90c8362cee22805207e
SHA1

2aef536e109616301c8c513843815602920402a7
SHA256

519944f31dffe89922b040ed260a5c5c425e752ffa75cc1175998a1abe6a3616
SHA512

725d873e6ab1bbdc496150afa250129c994efc7c11d096b5abe52ef65be19fc0ce8db5ebe951141a34906e2097237b7104ff623b83e1b93a26e315ec07b04fe2
SSDEEP

12288:RomKML5A4nWqTi25JrEYJR37WWBwunR5ASggWX/XqMw4Jd5wyiHaRqKySKGbA4ie:RoEWG55AmRueJQyvsfNODqNHTWMM

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

127.0.0.1:1604

Mutex

DCMIN_MUTEX-X4Z71G0

Attributes

gencode
1aVE07wonVME
install
false
offline_keylogger
true
persistence
false

rc4.plain

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Update = "C:\\Users\\Admin\\AppData\\Roaming\\L3G!T-Labs\\jdvs\\0.0.0.0\\Java Update.exe"	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\rundll32.exe"	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4324 set thread context of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1548	vbc.exe
Token: SeSecurityPrivilege	1548	vbc.exe
Token: SeTakeOwnershipPrivilege	1548	vbc.exe
Token: SeLoadDriverPrivilege	1548	vbc.exe
Token: SeSystemProfilePrivilege	1548	vbc.exe
Token: SeSystemtimePrivilege	1548	vbc.exe
Token: SeProfSingleProcessPrivilege	1548	vbc.exe
Token: SeIncBasePriorityPrivilege	1548	vbc.exe
Token: SeCreatePagefilePrivilege	1548	vbc.exe
Token: SeBackupPrivilege	1548	vbc.exe
Token: SeRestorePrivilege	1548	vbc.exe
Token: SeShutdownPrivilege	1548	vbc.exe
Token: SeDebugPrivilege	1548	vbc.exe
Token: SeSystemEnvironmentPrivilege	1548	vbc.exe
Token: SeChangeNotifyPrivilege	1548	vbc.exe
Token: SeRemoteShutdownPrivilege	1548	vbc.exe
Token: SeUndockPrivilege	1548	vbc.exe
Token: SeManageVolumePrivilege	1548	vbc.exe
Token: SeImpersonatePrivilege	1548	vbc.exe
Token: SeCreateGlobalPrivilege	1548	vbc.exe
Token: 33	1548	vbc.exe
Token: 34	1548	vbc.exe
Token: 35	1548	vbc.exe
Token: 36	1548	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1548	vbc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89
PID 4324 wrote to memory of 1548	4324	JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_196a23b56d80e90c8362cee22805207e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4324
- C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1548

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

memory/1548-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-28-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-5-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-6-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-23-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-10-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-22-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-17-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-14-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1548-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4324-0-0x0000000074AF2000-0x0000000074AF3000-memory.dmp

Filesize
4KB

Download
memory/4324-1-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/4324-9-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download
memory/4324-2-0x0000000074AF0000-0x00000000750A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads