Malware Analysis Report

2024-09-11 19:04

Sample ID 240615-fajrlsshnl
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

Detect Blackmoon payload

Blackmoon family

Loads dropped DLL

Drops file in Windows directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-15 04:40

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 04:40

Reported

2024-06-15 04:42

Platform

win7-20240220-en

Max time kernel

119s

Max time network

20s

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 1664 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\W1005359642.exe C:\Windows\system32\Dwm.exe
PID 1664 wrote to memory of 1176 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/1176-5-0x0000000001F80000-0x0000000001F81000-memory.dmp

memory/1176-7-0x0000000001F80000-0x0000000001F81000-memory.dmp

memory/1176-6-0x0000000002830000-0x0000000002960000-memory.dmp

memory/1176-9-0x0000000002960000-0x0000000002A98000-memory.dmp

memory/1664-10-0x0000000074240000-0x000000007426B000-memory.dmp

memory/1664-12-0x0000000074240000-0x000000007426B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 04:40

Reported

2024-06-15 04:42

Platform

win10v2004-20240226-en

Max time kernel

110s

Max time network

119s

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

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"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
CN 222.186.172.42:8080 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp

Files

C:\Windows\Dll2.dll

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

memory/64-6-0x00000000000B0000-0x00000000000B1000-memory.dmp

memory/64-7-0x0000014269780000-0x00000142698B8000-memory.dmp

memory/64-9-0x0000014269780000-0x00000142698B8000-memory.dmp