Malware Analysis Report

2024-10-23 20:21

Sample ID 240930-kpbrrswbqj
Target 2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver
SHA256 0157b5c72b74dce2a98edd7d110456d30f3de3378a28a8f9becf6d35c54453f2
Tags
klass28 meshagent
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

0157b5c72b74dce2a98edd7d110456d30f3de3378a28a8f9becf6d35c54453f2

Threat Level: Known bad

The file 2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver was found to be: Known bad.

Malicious Activity Summary

klass28 meshagent

Detects MeshAgent payload

Meshagent family

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-09-30 08:46

Signatures

Detects MeshAgent payload

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

Meshagent family

meshagent

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-30 08:46

Reported

2024-09-30 08:48

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver.exe"

Signatures

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\system32\wbem\wmic.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver.exe"

C:\Windows\system32\wbem\wmic.exe

wmic os get oslanguage /FORMAT:LIST

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-30 08:46

Reported

2024-09-30 08:48

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 36 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\system32\wbem\wmic.exe N/A
Token: 36 N/A C:\Windows\system32\wbem\wmic.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-30_b16c7517016d186609d348c1c0240cd8_ryuk_sliver.exe"

C:\Windows\system32\wbem\wmic.exe

wmic os get oslanguage /FORMAT:LIST

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 101.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

N/A