Malware Analysis Report

2025-08-10 17:44

Sample ID 230322-t828haca3t
Target AsyncClient.exe
SHA256 51dd17b0ea4169e58b72ce70495999eb72d81031fced1b1315eca962915dfa58
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

51dd17b0ea4169e58b72ce70495999eb72d81031fced1b1315eca962915dfa58

Threat Level: Known bad

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

Malicious Activity Summary

rat default asyncrat

Async RAT payload

Asyncrat family

AsyncRat

Async RAT payload

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-03-22 16:44

Signatures

Async RAT payload

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

Asyncrat family

asyncrat

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-22 16:44

Reported

2023-03-22 16:45

Platform

win7-20230220-en

Max time kernel

6s

Max time network

18s

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
ES 91.116.253.83:7707 tcp

Files

memory/1700-54-0x0000000000980000-0x0000000000992000-memory.dmp

memory/1700-55-0x0000000001F70000-0x0000000001FB0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-22 16:44

Reported

2023-03-22 16:45

Platform

win10v2004-20230220-en

Max time kernel

26s

Max time network

29s

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 8.8.8.8:53 123.108.74.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 254.138.241.8.in-addr.arpa udp
NL 178.79.208.1:80 tcp
US 8.8.8.8:53 199.176.139.52.in-addr.arpa udp
ES 91.116.253.83:8808 tcp
US 8.8.8.8:53 37.146.190.20.in-addr.arpa udp
US 8.8.8.8:53 254.135.241.8.in-addr.arpa udp

Files

memory/3784-133-0x0000000000810000-0x0000000000822000-memory.dmp

memory/3784-134-0x0000000005350000-0x0000000005360000-memory.dmp

memory/3784-135-0x0000000005350000-0x0000000005360000-memory.dmp