Malware Analysis Report

2024-10-23 20:08

Sample ID 240803-cxkewavdng
Target 81d7da6337a9a90de315daf0a9b58ec6.bin
SHA256 bbe216179efc421544da9c7106a96fe38586a20307532895be55ffd053869f40
Tags
discovery evasion themida darkcomet guest16 rat trojan
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

bbe216179efc421544da9c7106a96fe38586a20307532895be55ffd053869f40

Threat Level: Known bad

The file 81d7da6337a9a90de315daf0a9b58ec6.bin was found to be: Known bad.

Malicious Activity Summary

discovery evasion themida darkcomet guest16 rat trojan

Darkcomet

Identifies Wine through registry keys

Themida packer

Suspicious use of NtSetInformationThreadHideFromDebugger

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-03 02:27

Signatures

Themida packer

themida
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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-03 02:27

Reported

2024-08-03 02:29

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe"

Signatures

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A

Themida packer

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe

"C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/4644-0-0x0000000000400000-0x000000000061D000-memory.dmp

memory/4644-1-0x0000000000400000-0x000000000061D000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-03 02:27

Reported

2024-08-03 02:29

Platform

win7-20240708-en

Max time kernel

150s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe"

Signatures

Darkcomet

trojan rat darkcomet

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A

Themida packer

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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: 34 N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A
Token: 35 N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe

"C:\Users\Admin\AppData\Local\Temp\81d7da6337a9a90de315daf0a9b58ec6.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 mrkxk.no-ip.info udp

Files

memory/1820-0-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-2-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-3-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-1-0x0000000000401000-0x0000000000450000-memory.dmp

memory/1820-4-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-5-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-6-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-7-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-8-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-9-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-10-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-11-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-12-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-13-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-14-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-15-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-16-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-17-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-18-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-19-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-20-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-21-0x0000000000400000-0x000000000061D000-memory.dmp

memory/1820-22-0x0000000000400000-0x000000000061D000-memory.dmp