Malware Analysis Report

2024-10-23 19:27

Sample ID 240628-x4lxhasgjm
Target bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6
SHA256 bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6
Tags
rat default asyncrat discovery
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6

Threat Level: Known bad

The file bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6 was found to be: Known bad.

Malicious Activity Summary

rat default asyncrat discovery

AsyncRat

Async RAT payload

Asyncrat family

Checks installed software on the system

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 19:24

Signatures

Async RAT payload

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

Asyncrat family

asyncrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 19:24

Reported

2024-06-28 19:27

Platform

win10v2004-20240508-en

Max time kernel

133s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe"

Signatures

AsyncRat

rat asyncrat

Checks installed software on the system

discovery

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe

"C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.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 --field-trial-handle=4204,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=3468 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
TR 45.88.91.103:4545 tcp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 103.91.88.45.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 50.242.123.52.in-addr.arpa udp

Files

memory/4372-0-0x00007FFF91693000-0x00007FFF91695000-memory.dmp

memory/4372-1-0x0000000000EB0000-0x0000000000EC8000-memory.dmp

memory/4372-3-0x00007FFF91690000-0x00007FFF92151000-memory.dmp

memory/4372-4-0x00007FFF91690000-0x00007FFF92151000-memory.dmp

memory/4372-7-0x00007FFF91690000-0x00007FFF92151000-memory.dmp

memory/4372-9-0x00007FFF91690000-0x00007FFF92151000-memory.dmp

memory/4372-10-0x00007FFF91693000-0x00007FFF91695000-memory.dmp

memory/4372-11-0x00007FFF91690000-0x00007FFF92151000-memory.dmp

memory/4372-12-0x00007FFF91690000-0x00007FFF92151000-memory.dmp

memory/4372-13-0x00007FFF91690000-0x00007FFF92151000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 19:24

Reported

2024-06-28 19:27

Platform

win11-20240508-en

Max time kernel

92s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe"

Signatures

AsyncRat

rat asyncrat

Checks installed software on the system

discovery

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe

"C:\Users\Admin\AppData\Local\Temp\bfaa1a2e64a91e8d1cc56bc9ac7d906b135b41d5b155c43af147e6590c596cd6.exe"

Network

Country Destination Domain Proto
TR 45.88.91.103:4545 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 52.111.227.14:443 tcp

Files

memory/1540-0-0x00007FFE0ABB3000-0x00007FFE0ABB5000-memory.dmp

memory/1540-1-0x0000000000A00000-0x0000000000A18000-memory.dmp

memory/1540-3-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/1540-4-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/1540-8-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/1540-9-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/1540-10-0x00007FFE0ABB3000-0x00007FFE0ABB5000-memory.dmp

memory/1540-11-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/1540-12-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/1540-13-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp