darkcomet | b109878180698ad0d281bd9af106291ae13b109433d76c0a01f4b5b7c1cef37e

Analysis

max time kernel
149s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/09/2024, 18:24

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General

Target

02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe
Size

2.2MB
MD5

02b3325b886d11bcb59bd91f4a66d02d
SHA1

1e54f77460c512f320f761ef47cbf4936e267a3b
SHA256

b109878180698ad0d281bd9af106291ae13b109433d76c0a01f4b5b7c1cef37e
SHA512

77cc0936a28c54c79688af650acffd0a41159e82ab14538e503d4af61464d47a30b4022fabf928d13209433fe1da42b8ae2f46ff27a34d95d9e122f95b92ad48
SSDEEP

24576:3y8pZnlwtHNN0K+sToVvQg+4Y7LDD9fDZN9EGJY3tPp033gxnwRDySFZwPObm:3ZnlUN0K+304S7RX9ERyw69x

Score

10^/10

darkcomet discovery evasion persistence rat trojan

Malware Config

Signatures

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	vbc.exe

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

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\DefaultSystem = "C:\\Users\\Admin\\AppData\\Roaming\\Sys32c.exe"	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1904 set thread context of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.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 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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	vbc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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: GetForegroundWindowSpam 1 IoCs

pid	Process
2568	vbc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2568	vbc.exe
Token: SeSecurityPrivilege	2568	vbc.exe
Token: SeTakeOwnershipPrivilege	2568	vbc.exe
Token: SeLoadDriverPrivilege	2568	vbc.exe
Token: SeSystemProfilePrivilege	2568	vbc.exe
Token: SeSystemtimePrivilege	2568	vbc.exe
Token: SeProfSingleProcessPrivilege	2568	vbc.exe
Token: SeIncBasePriorityPrivilege	2568	vbc.exe
Token: SeCreatePagefilePrivilege	2568	vbc.exe
Token: SeBackupPrivilege	2568	vbc.exe
Token: SeRestorePrivilege	2568	vbc.exe
Token: SeShutdownPrivilege	2568	vbc.exe
Token: SeDebugPrivilege	2568	vbc.exe
Token: SeSystemEnvironmentPrivilege	2568	vbc.exe
Token: SeChangeNotifyPrivilege	2568	vbc.exe
Token: SeRemoteShutdownPrivilege	2568	vbc.exe
Token: SeUndockPrivilege	2568	vbc.exe
Token: SeManageVolumePrivilege	2568	vbc.exe
Token: SeImpersonatePrivilege	2568	vbc.exe
Token: SeCreateGlobalPrivilege	2568	vbc.exe
Token: 33	2568	vbc.exe
Token: 34	2568	vbc.exe
Token: 35	2568	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2568	vbc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30
PID 1904 wrote to memory of 2568	1904	02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\02b3325b886d11bcb59bd91f4a66d02d_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Windows security bypass
  - 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 SetWindowsHookEx
  PID:2568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1904-22-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1904-1-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1904-2-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1904-0-0x0000000074531000-0x0000000074532000-memory.dmp

Filesize
4KB

Download
memory/2568-27-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-29-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-18-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-17-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-13-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-8-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-6-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-4-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-9-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-5-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-23-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-24-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2568-25-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-3-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-28-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-26-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-11-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-30-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-31-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2568-32-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-33-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-34-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-35-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-36-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-37-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-38-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-39-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-40-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-41-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-42-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-43-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2568-44-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads