Malware Analysis Report

2024-09-11 19:02

Sample ID 240615-fddprstajj
Target W1005359642.exe
SHA256 cb6953fa469deb5c60128850c83577fbfecd335f48bfb8680445db67879c7dc2
Tags
blackmoon
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

cb6953fa469deb5c60128850c83577fbfecd335f48bfb8680445db67879c7dc2

Threat Level: Known bad

The file W1005359642.exe was found to be: Known bad.

Malicious Activity Summary

blackmoon

Blackmoon family

Detect Blackmoon payload

Loads dropped DLL

Drops file in Windows directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-15 04:45

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: behavioral1

Detonation Overview

Submitted

2024-06-15 04:45

Reported

2024-06-15 04:47

Platform

win7-20240611-en

Max time kernel

141s

Max time network

125s

Command Line

"C:\Windows\system32\Dwm.exe"

Signatures

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Dll2.dll C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1992 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe C:\Windows\system32\Dwm.exe
PID 1992 wrote to memory of 1172 N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe C:\Windows\system32\Dwm.exe

Processes

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Users\Admin\AppData\Local\Temp\W1005359642.exe

"C:\Users\Admin\AppData\Local\Temp\W1005359642.exe"

Network

Country Destination Domain Proto
CN 222.186.172.42:8080 tcp

Files

C:\Windows\Dll2.dll

MD5 6206e7bd72ee6c7df5e2a13b19a05303
SHA1 88260d9da5e75ae2aa7d4a671de0e1807ebf006d
SHA256 0f63d0cdd05e5308a25e9414136bbc2d1898ea3cfda9388d5af1796b47d40106
SHA512 85d93562567eeea776f9aeb618ecd5ffcf936d04fc2303aea7c1d36cb446231fb56ff529cf7449e639fe8966d51571607875ac5ae63757e00aded368da70998b

memory/1172-5-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/1172-8-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/1172-7-0x0000000002000000-0x0000000002130000-memory.dmp

memory/1172-10-0x0000000002530000-0x0000000002668000-memory.dmp

memory/1992-11-0x0000000075200000-0x000000007522B000-memory.dmp

memory/1992-13-0x0000000075200000-0x000000007522B000-memory.dmp

memory/1992-20-0x0000000075200000-0x000000007522B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 04:45

Reported

2024-06-15 04:47

Platform

win10v2004-20240508-en

Max time kernel

113s

Max time network

38s

Command Line

"dwm.exe"

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Dll2.dll C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\system32\dwm.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\dwm.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\system32\dwm.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\system32\dwm.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3152 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe C:\Windows\system32\dwm.exe
PID 3152 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe C:\Windows\system32\dwm.exe

Processes

C:\Windows\system32\dwm.exe

"dwm.exe"

C:\Users\Admin\AppData\Local\Temp\W1005359642.exe

"C:\Users\Admin\AppData\Local\Temp\W1005359642.exe"

Network

Country Destination Domain Proto
CN 222.186.172.42:8080 tcp

Files

C:\Windows\Dll2.dll

MD5 6206e7bd72ee6c7df5e2a13b19a05303
SHA1 88260d9da5e75ae2aa7d4a671de0e1807ebf006d
SHA256 0f63d0cdd05e5308a25e9414136bbc2d1898ea3cfda9388d5af1796b47d40106
SHA512 85d93562567eeea776f9aeb618ecd5ffcf936d04fc2303aea7c1d36cb446231fb56ff529cf7449e639fe8966d51571607875ac5ae63757e00aded368da70998b

memory/64-6-0x00000000001C0000-0x00000000001C1000-memory.dmp

memory/64-7-0x000002042B880000-0x000002042B9B8000-memory.dmp

memory/64-9-0x000002042B880000-0x000002042B9B8000-memory.dmp