Malware Analysis Report

2025-08-10 21:13

Sample ID 221011-hn7fyabbhq
Target b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073
SHA256 b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073
Tags
darkcomet guest16 evasion 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

b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073

Threat Level: Known bad

The file b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073 was found to be: Known bad.

Malicious Activity Summary

darkcomet guest16 evasion rat trojan

Darkcomet

Modifies firewall policy service

Disables Task Manager via registry modification

Disables RegEdit via registry modification

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-10-11 06:54

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-11 06:54

Reported

2022-10-11 08:47

Platform

win7-20220812-en

Max time kernel

146s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe"

Signatures

Darkcomet

trojan rat darkcomet

Modifies firewall policy service

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A

Disables RegEdit via registry modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A

Disables Task Manager via registry modification

evasion

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: 34 N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: 35 N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe

"C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 joker0.tzo.net udp

Files

memory/1132-54-0x0000000075931000-0x0000000075933000-memory.dmp

memory/1132-55-0x0000000000400000-0x0000000000535000-memory.dmp

memory/1132-56-0x0000000001DD0000-0x0000000001E30000-memory.dmp

memory/1132-57-0x00000000032D0000-0x00000000032D3000-memory.dmp

memory/1132-58-0x0000000000400000-0x0000000000535000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-11 06:54

Reported

2022-10-11 08:47

Platform

win10v2004-20220812-en

Max time kernel

152s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe"

Signatures

Darkcomet

trojan rat darkcomet

Modifies firewall policy service

evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A

Disables RegEdit via registry modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A

Disables Task Manager via registry modification

evasion

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: 34 N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: 35 N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A
Token: 36 N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe

"C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
DE 20.52.64.200:443 tcp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 106.89.54.20.in-addr.arpa udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
NL 87.248.202.1:80 tcp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 joker0.tzo.net udp
US 8.8.8.8:53 udp

Files

memory/1684-132-0x0000000000400000-0x0000000000535000-memory.dmp

memory/1684-133-0x0000000002330000-0x0000000002390000-memory.dmp

memory/1684-134-0x0000000003430000-0x0000000003433000-memory.dmp

memory/1684-135-0x0000000000400000-0x0000000000535000-memory.dmp