Malware Analysis Report

2024-08-06 17:17

Sample ID 240621-nk6m5a1gnj
Target SMSS.exe
SHA256 5ba8aacca9daae5b7b75e37803b4d5e97e47e74dc5c4da9c30bb26d4475406f3
Tags
darkcomet guest16 rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5ba8aacca9daae5b7b75e37803b4d5e97e47e74dc5c4da9c30bb26d4475406f3

Threat Level: Known bad

The file SMSS.exe was found to be: Known bad.

Malicious Activity Summary

darkcomet guest16 rat trojan

Darkcomet family

Darkcomet

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-21 11:28

Signatures

Darkcomet family

darkcomet

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-21 11:28

Reported

2024-06-21 11:30

Platform

win7-20231129-en

Max time kernel

118s

Max time network

119s

Command Line

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

Signatures

Darkcomet

trojan rat darkcomet

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 824 set thread context of 1468 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: 34 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: 35 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeSystemtimePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeBackupPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeRestorePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeShutdownPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeUndockPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeManageVolumePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeImpersonatePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: 33 N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: 34 N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: 35 N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 824 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 824 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 824 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 824 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 824 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 824 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\SMSS.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe

Processes

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

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

C:\Program Files (x86)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 carolina-reverse.gl.at.ply.gg udp
US 147.185.221.20:34609 carolina-reverse.gl.at.ply.gg tcp

Files

memory/824-0-0x0000000000260000-0x0000000000261000-memory.dmp

memory/1468-1-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/824-2-0x0000000000400000-0x00000000004B5000-memory.dmp