Malware Analysis Report

2025-06-16 06:44

Sample ID 240120-xr23ysehgp
Target MSRSAAP.EXE.exe
SHA256 0cbf9454358f9770b1165a1e8df830d359d513ececa0e4adef67bfa3f0545a0d
Tags
upx guest16 darkcomet rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

0cbf9454358f9770b1165a1e8df830d359d513ececa0e4adef67bfa3f0545a0d

Threat Level: Known bad

The file MSRSAAP.EXE.exe was found to be: Known bad.

Malicious Activity Summary

upx guest16 darkcomet rat trojan

Darkcomet family

Darkcomet

UPX packed file

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-20 19:06

Signatures

Darkcomet family

darkcomet

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-20 19:06

Reported

2024-01-20 19:08

Platform

win7-20231215-en

Max time kernel

140s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\MSRSAAP.EXE.exe"

Signatures

Darkcomet

trojan rat darkcomet

UPX packed file

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

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

C:\Users\Admin\AppData\Local\Temp\MSRSAAP.EXE.exe

"C:\Users\Admin\AppData\Local\Temp\MSRSAAP.EXE.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.64.4.198:16834 5.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.64.4.198:16834 5.tcp.eu.ngrok.io tcp
DE 3.64.4.198:16834 5.tcp.eu.ngrok.io tcp

Files

memory/1372-0-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/1372-1-0x00000000002E0000-0x00000000002E1000-memory.dmp

memory/1372-2-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/1372-10-0x0000000000400000-0x00000000004E8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-20 19:06

Reported

2024-01-20 19:08

Platform

win10v2004-20231215-en

Max time kernel

142s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\MSRSAAP.EXE.exe"

Signatures

Darkcomet

trojan rat darkcomet

UPX packed file

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

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

C:\Users\Admin\AppData\Local\Temp\MSRSAAP.EXE.exe

"C:\Users\Admin\AppData\Local\Temp\MSRSAAP.EXE.exe"

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 200.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 21.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.127.181.115:16834 5.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 115.181.127.3.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 105.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 182.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.64.4.198:16834 5.tcp.eu.ngrok.io tcp
DE 3.64.4.198:16834 5.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 198.4.64.3.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 13.173.189.20.in-addr.arpa udp

Files

memory/1700-0-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/1700-1-0x0000000000B40000-0x0000000000B41000-memory.dmp

memory/1700-2-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/1700-10-0x0000000000400000-0x00000000004E8000-memory.dmp