darkcomet | 6f659723c3641ca5efbddc1cb1e10db9217863fb5777f8c2f155767c4864dd14

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2025 10:07

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General

Target

JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
Size

1.4MB
MD5

a6e1da7f6ef613eb0ab0dced58307812
SHA1

a5e1d8c9dafe5e107336bad546cfdd9038c988aa
SHA256

6f659723c3641ca5efbddc1cb1e10db9217863fb5777f8c2f155767c4864dd14
SHA512

892a056f785616c57cbb0cfce0d0116ff719fcaa25d37a1256842bd0764eb794c76b48bc586ddc925a08dea2be34d2ce1c9d69e841bdc59468ab559787b13e3e
SSDEEP

24576:q6d6vUOfKO9okwUjB2LYrjarPTbXSVuNh0J7K56w4J1rL6cJ1Fzg:qZUOfKWocs8r2XeGhUK5l4/rL6cFk

Score

10^/10

darkcomet discovery evasion rat trojan

Malware Config

Signatures

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

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	vbc.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winlogon.exe	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winlogon.exe	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Wine	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2908	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1196 set thread context of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83

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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe

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	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	vbc.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	vbc.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
2908	vbc.exe
2908	vbc.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
Token: SeIncreaseQuotaPrivilege	2908	vbc.exe
Token: SeSecurityPrivilege	2908	vbc.exe
Token: SeTakeOwnershipPrivilege	2908	vbc.exe
Token: SeLoadDriverPrivilege	2908	vbc.exe
Token: SeSystemProfilePrivilege	2908	vbc.exe
Token: SeSystemtimePrivilege	2908	vbc.exe
Token: SeProfSingleProcessPrivilege	2908	vbc.exe
Token: SeIncBasePriorityPrivilege	2908	vbc.exe
Token: SeCreatePagefilePrivilege	2908	vbc.exe
Token: SeBackupPrivilege	2908	vbc.exe
Token: SeRestorePrivilege	2908	vbc.exe
Token: SeShutdownPrivilege	2908	vbc.exe
Token: SeDebugPrivilege	2908	vbc.exe
Token: SeSystemEnvironmentPrivilege	2908	vbc.exe
Token: SeChangeNotifyPrivilege	2908	vbc.exe
Token: SeRemoteShutdownPrivilege	2908	vbc.exe
Token: SeUndockPrivilege	2908	vbc.exe
Token: SeManageVolumePrivilege	2908	vbc.exe
Token: SeImpersonatePrivilege	2908	vbc.exe
Token: SeCreateGlobalPrivilege	2908	vbc.exe
Token: 33	2908	vbc.exe
Token: 34	2908	vbc.exe
Token: 35	2908	vbc.exe
Token: 36	2908	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2908	vbc.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83
PID 1196 wrote to memory of 2908	1196	JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a6e1da7f6ef613eb0ab0dced58307812.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1196-0-0x0000000075572000-0x0000000075573000-memory.dmp

Filesize
4KB

Download
memory/1196-1-0x0000000075570000-0x0000000075B21000-memory.dmp

Filesize
5.7MB

Download
memory/1196-2-0x0000000075570000-0x0000000075B21000-memory.dmp

Filesize
5.7MB

Download
memory/1196-9-0x0000000075570000-0x0000000075B21000-memory.dmp

Filesize
5.7MB

Download
memory/2908-3-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-5-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-6-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-28-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-30-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-33-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-32-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-31-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-29-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-27-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-36-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-35-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-40-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-41-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-46-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-47-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-45-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-44-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-43-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-42-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-39-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-38-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-37-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-34-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-26-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-25-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-24-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-23-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-22-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-20-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-18-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-17-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-16-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-15-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-14-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-12-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-11-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-21-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-19-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-13-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-10-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-48-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-49-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-50-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-51-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-52-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-53-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-54-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-55-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-56-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-57-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-58-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-59-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-60-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-61-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-62-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-63-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-64-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-65-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-66-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/2908-67-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download