darkcomet | 89342a9f2dd627d4d0947aae4b6bda50ad613c711e1185c64d740e346c0f656b

Analysis

max time kernel
150s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 02:44

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General

Target
bfa2f84b7a3bc898c573aad0a7c884e8.exe
Size 1.3MB
Sample240311-c8kvsaad94
SHA256 89342a9f2dd627d4d0947aae4b6bda50ad613c711e1185c64d740e346c0f656b
MD5 bfa2f84b7a3bc898c573aad0a7c884e8
SHA1 2322c28a7087d1854385bef40f37702ea47b81ee
SHA512 dc2ed4afa647b9fcae392a42570c4b3431f818d0d6a4aa22961a84dfe279decce8d08f7ee3ad34b6f93b3cbf175f31ddbb873c56b69a736e783fa67d55c46b6e
SSDEEP 24576:l7bM+xZV+Ij+vftDCIn1FcnaR/VR09S7aRi:l7bDZVaV1GaJj09S7aR
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet persistence rat trojan

Malware Config

Signatures

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

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\""	bfa2f84b7a3bc898c573aad0a7c884e8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5112 set thread context of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93

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 use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1040	vbc.exe
Token: SeSecurityPrivilege	1040	vbc.exe
Token: SeTakeOwnershipPrivilege	1040	vbc.exe
Token: SeLoadDriverPrivilege	1040	vbc.exe
Token: SeSystemProfilePrivilege	1040	vbc.exe
Token: SeSystemtimePrivilege	1040	vbc.exe
Token: SeProfSingleProcessPrivilege	1040	vbc.exe
Token: SeIncBasePriorityPrivilege	1040	vbc.exe
Token: SeCreatePagefilePrivilege	1040	vbc.exe
Token: SeBackupPrivilege	1040	vbc.exe
Token: SeRestorePrivilege	1040	vbc.exe
Token: SeShutdownPrivilege	1040	vbc.exe
Token: SeDebugPrivilege	1040	vbc.exe
Token: SeSystemEnvironmentPrivilege	1040	vbc.exe
Token: SeChangeNotifyPrivilege	1040	vbc.exe
Token: SeRemoteShutdownPrivilege	1040	vbc.exe
Token: SeUndockPrivilege	1040	vbc.exe
Token: SeManageVolumePrivilege	1040	vbc.exe
Token: SeImpersonatePrivilege	1040	vbc.exe
Token: SeCreateGlobalPrivilege	1040	vbc.exe
Token: 33	1040	vbc.exe
Token: 34	1040	vbc.exe
Token: 35	1040	vbc.exe
Token: 36	1040	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1040	vbc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93
PID 5112 wrote to memory of 1040	5112	bfa2f84b7a3bc898c573aad0a7c884e8.exe	93

C:\Users\Admin\AppData\Local\Temp\bfa2f84b7a3bc898c573aad0a7c884e8.exe
"C:\Users\Admin\AppData\Local\Temp\bfa2f84b7a3bc898c573aad0a7c884e8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5112
- 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
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

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

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1040-16-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-25-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-29-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-4-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-28-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-27-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-8-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-9-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-10-0x0000000002400000-0x0000000002401000-memory.dmp

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memory/1040-11-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-12-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-13-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-26-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-14-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-6-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-17-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-18-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-19-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-20-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-21-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-22-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-23-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-24-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/1040-15-0x0000000000400000-0x00000000004C0000-memory.dmp

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memory/5112-1-0x0000000074B60000-0x0000000075111000-memory.dmp

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memory/5112-7-0x0000000074B60000-0x0000000075111000-memory.dmp

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memory/5112-0-0x0000000074B60000-0x0000000075111000-memory.dmp

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memory/5112-2-0x0000000001B50000-0x0000000001B60000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads