Malware Analysis Report

2025-08-05 11:00

Sample ID 241031-g1pafsselm
Target AsyncClient.exe
SHA256 b88fad07ba2812f8023fd20a5939192c7932efa99b7c00953e532f77c0896ce6
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

b88fad07ba2812f8023fd20a5939192c7932efa99b7c00953e532f77c0896ce6

Threat Level: Known bad

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

Malicious Activity Summary

rat default asyncrat discovery

AsyncRat

Async RAT payload

Asyncrat family

Unsigned PE

System Location Discovery: System Language Discovery

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 06:16

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 06:16

Reported

2024-10-31 06:17

Platform

win7-20240708-en

Max time kernel

32s

Max time network

32s

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

Processes

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

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

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x0

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x1

Network

Country Destination Domain Proto
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 127.0.0.1:8808 tcp
N/A 127.0.0.1:7707 tcp

Files

memory/2328-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

memory/2328-1-0x0000000000D70000-0x0000000000D82000-memory.dmp

memory/2328-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

memory/2328-3-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

memory/2328-4-0x0000000074DE0000-0x00000000754CE000-memory.dmp

memory/2664-6-0x0000000002D90000-0x0000000002D91000-memory.dmp

memory/2328-5-0x0000000074DE0000-0x00000000754CE000-memory.dmp

memory/3004-7-0x0000000002B00000-0x0000000002B01000-memory.dmp