Malware Analysis Report

2025-08-05 15:28

Sample ID 221019-ras6tsagc9
Target d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c
SHA256 d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c
Tags
darkcomet yes persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c

Threat Level: Known bad

The file d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c was found to be: Known bad.

Malicious Activity Summary

darkcomet yes persistence rat trojan

Darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-10-19 13:59

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-19 13:59

Reported

2022-10-19 14:58

Platform

win7-20220812-en

Max time kernel

151s

Max time network

46s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe"

Signatures

Darkcomet

trojan rat darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindosU = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WindosU.exe" C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 604 set thread context of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 34 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 35 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 604 wrote to memory of 280 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe

"C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 amiahacker.no-ip.biz udp

Files

memory/604-54-0x0000000075F81000-0x0000000075F83000-memory.dmp

memory/604-55-0x0000000074D80000-0x000000007532B000-memory.dmp

memory/280-56-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-57-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-59-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-61-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-63-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-65-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-66-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-68-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-71-0x000000000048F888-mapping.dmp

memory/280-70-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-72-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/604-73-0x0000000074D80000-0x000000007532B000-memory.dmp

memory/280-75-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-76-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/280-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-19 13:59

Reported

2022-10-19 14:58

Platform

win10v2004-20220901-en

Max time kernel

150s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe"

Signatures

Darkcomet

trojan rat darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindosU = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WindosU.exe" C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3088 set thread context of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 34 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 35 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 36 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3088 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe

"C:\Users\Admin\AppData\Local\Temp\d62bb672ce29946a89acb81232e267d89154e336a84f2191c0fd93c8a187042c.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
NL 104.80.225.205:443 tcp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 20.189.173.4:443 tcp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.253.183.120:80 tcp
US 8.253.183.120:80 tcp
US 8.253.183.120:80 tcp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp
US 8.8.8.8:53 amiahacker.no-ip.biz udp

Files

memory/3088-132-0x0000000074890000-0x0000000074E41000-memory.dmp

memory/4824-133-0x0000000000000000-mapping.dmp

memory/4824-134-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/4824-135-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/4824-136-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/3088-137-0x0000000074890000-0x0000000074E41000-memory.dmp

memory/4824-138-0x0000000000400000-0x00000000004B2000-memory.dmp

memory/4824-139-0x0000000000400000-0x00000000004B2000-memory.dmp