Malware Analysis Report

2025-01-18 04:11

Sample ID 241031-ambnwavckd
Target AsyncClient.exe
SHA256 af77d8e73c934b20d2dc1b732ae00bfacb092e9c5483b36e221e00a2db7e1932
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 Overview

score
10/10

SHA256

af77d8e73c934b20d2dc1b732ae00bfacb092e9c5483b36e221e00a2db7e1932

Threat Level: Known bad

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

Malicious Activity Summary

rat default asyncrat discovery

Async RAT payload

Asyncrat family

AsyncRat

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 00:19

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

2024-10-31 00:19

Reported

2024-10-31 00:24

Platform

win10ltsc2021-20241023-en

Max time kernel

293s

Max time network

209s

Command Line

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

Signatures

AsyncRat

rat asyncrat

Asyncrat family

asyncrat

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
N/A 127.0.0.1:7707 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:6606 tcp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:7707 tcp
US 8.8.8.8:53 85.49.80.91.in-addr.arpa udp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:6606 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:8808 tcp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:8808 tcp
N/A 127.0.0.1:7707 tcp
N/A 127.0.0.1:6606 tcp
N/A 127.0.0.1:7707 tcp

Files

memory/2584-0-0x000000007536E000-0x000000007536F000-memory.dmp

memory/2584-1-0x0000000000580000-0x0000000000592000-memory.dmp

memory/2584-2-0x0000000075360000-0x0000000075B11000-memory.dmp

memory/2584-3-0x0000000004F20000-0x0000000004F86000-memory.dmp

memory/2584-4-0x0000000005410000-0x00000000054AC000-memory.dmp

memory/2584-5-0x000000007536E000-0x000000007536F000-memory.dmp

memory/2584-6-0x0000000075360000-0x0000000075B11000-memory.dmp