Malware Analysis Report

2025-06-16 06:44

Sample ID 240120-xsedaafdc7
Target MSRSAAP.EXE
SHA256 0cbf9454358f9770b1165a1e8df830d359d513ececa0e4adef67bfa3f0545a0d
Tags
darkcomet guest16 rat trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0cbf9454358f9770b1165a1e8df830d359d513ececa0e4adef67bfa3f0545a0d

Threat Level: Known bad

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

Malicious Activity Summary

darkcomet guest16 rat trojan upx

Darkcomet family

Darkcomet

UPX packed file

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

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: behavioral2

Detonation Overview

Submitted

2024-01-20 19:06

Reported

2024-01-20 19:09

Platform

win10v2004-20231222-en

Max time kernel

141s

Max time network

150s

Command Line

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

Suspicious use of SetWindowsHookEx

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 42.192.122.92.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.67.161.133:16834 5.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 133.161.67.3.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 189.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.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 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/1004-0-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/1004-1-0x0000000000B40000-0x0000000000B41000-memory.dmp

memory/1004-2-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/1004-4-0x0000000000B40000-0x0000000000B41000-memory.dmp

memory/1004-11-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/1004-12-0x0000000000400000-0x00000000004E8000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-20 19:06

Reported

2024-01-20 19:09

Platform

win7-20231215-en

Max time kernel

141s

Max time network

151s

Command Line

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

Suspicious use of SetWindowsHookEx

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.67.161.133:16834 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/3048-0-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/3048-1-0x0000000000240000-0x0000000000241000-memory.dmp

memory/3048-2-0x0000000000400000-0x00000000004E8000-memory.dmp

memory/3048-10-0x0000000000400000-0x00000000004E8000-memory.dmp