Malware Analysis Report

2025-03-14 21:00

Sample ID 240602-e8byzsbb7z
Target 5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175
SHA256 5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175
Tags
blackmoon
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175

Threat Level: Known bad

The file 5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175 was found to be: Known bad.

Malicious Activity Summary

blackmoon

Blackmoon family

Detect Blackmoon payload

Unsigned PE

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-02 04:36

Signatures

Blackmoon family

blackmoon

Detect Blackmoon payload

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

2024-06-02 04:36

Reported

2024-06-02 04:38

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

156s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175.dll

Signatures

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{25E609E5-B259-11CF-BFC7-444553540000} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{25E609E5-B259-11CF-BFC7-444553540000}\InProcServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{25E609E4-B259-11CF-BFC7-444553540000} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{25E609E4-B259-11CF-BFC7-444553540000}\InProcServer32 C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 1 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeLockMemoryPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeMachineAccountPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeTcbPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeCreatePermanentPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSyncAgentPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeEnableDelegationPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 31 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 32 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 34 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 35 N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 232 wrote to memory of 216 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 232 wrote to memory of 216 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 232 wrote to memory of 216 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.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 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 170.117.168.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-02 04:36

Reported

2024-06-02 04:38

Platform

win7-20240221-en

Max time kernel

122s

Max time network

123s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175.dll

Signatures

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{25E609E5-B259-11CF-BFC7-444553540000} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{25E609E5-B259-11CF-BFC7-444553540000}\InProcServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{25E609E4-B259-11CF-BFC7-444553540000} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{25E609E4-B259-11CF-BFC7-444553540000}\InProcServer32 C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 1 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeCreateTokenPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeAssignPrimaryTokenPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeLockMemoryPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeMachineAccountPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeTcbPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeCreatePermanentPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeSyncAgentPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeEnableDelegationPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 31 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 32 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 34 N/A C:\Windows\SysWOW64\regsvr32.exe N/A
Token: 35 N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2844 wrote to memory of 2012 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2844 wrote to memory of 2012 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2844 wrote to memory of 2012 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2844 wrote to memory of 2012 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2844 wrote to memory of 2012 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2844 wrote to memory of 2012 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2844 wrote to memory of 2012 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\5b5bf0df0b6a050599c3be04b3156a9f8b2c89f8d3ec10cd61d97db819d06175.dll

Network

N/A

Files

N/A