Malware Analysis Report

2025-08-06 03:44

Sample ID 230426-vzg2mscf5z
Target AsyncClient.exe
SHA256 51149751e3155e4255792407b0d6b7b448db25719f52a6a9008a1bf38d153f00
Tags
rat default asyncrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

51149751e3155e4255792407b0d6b7b448db25719f52a6a9008a1bf38d153f00

Threat Level: Known bad

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

Malicious Activity Summary

rat default asyncrat

AsyncRat

Async RAT payload

Asyncrat family

Async RAT payload

Unsigned PE

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-04-26 17:25

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

2023-04-26 17:25

Reported

2023-04-26 17:28

Platform

win7-20230220-en

Max time kernel

147s

Max time network

149s

Command Line

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

Signatures

AsyncRat

rat asyncrat

Async RAT payload

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

Processes

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

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

Network

Country Destination Domain Proto
SG 15.235.130.74:6606 tcp
SG 15.235.130.74:8808 tcp
SG 15.235.130.74:7707 tcp
SG 15.235.130.74:6606 tcp
SG 15.235.130.74:7707 tcp
SG 15.235.130.74:8808 tcp

Files

memory/1772-54-0x0000000000180000-0x0000000000192000-memory.dmp

memory/1772-55-0x0000000000720000-0x0000000000760000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-26 17:25

Reported

2023-04-26 17:28

Platform

win10v2004-20230220-en

Max time kernel

137s

Max time network

146s

Command Line

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

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A 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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
SG 15.235.130.74:8808 tcp
US 40.77.2.164:443 tcp
SG 15.235.130.74:8808 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
FR 40.79.141.152:443 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 64.13.109.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
SG 15.235.130.74:7707 tcp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 93.184.220.29:80 tcp
SG 15.235.130.74:6606 tcp
US 8.8.8.8:53 126.177.238.8.in-addr.arpa udp
SG 15.235.130.74:8808 tcp
SG 15.235.130.74:7707 tcp

Files

memory/372-133-0x0000000000DB0000-0x0000000000DC2000-memory.dmp

memory/372-134-0x0000000005810000-0x0000000005820000-memory.dmp

memory/372-135-0x0000000005810000-0x0000000005820000-memory.dmp