Malware Analysis Report

2025-08-06 03:44

Sample ID 230427-g29b1sga2y
Target install.bat
SHA256 09effa48cafb7ba5d02f97e1e1dcb2490d387bc02453900fe3bd69e07ca00edf
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

09effa48cafb7ba5d02f97e1e1dcb2490d387bc02453900fe3bd69e07ca00edf

Threat Level: Known bad

The file install.bat was found to be: Known bad.

Malicious Activity Summary

rat default asyncrat

Async RAT payload

Asyncrat family

AsyncRat

Async RAT payload

Unsigned PE

Program crash

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-04-27 06:19

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

2023-04-27 06:19

Reported

2023-04-27 06:19

Platform

win10-20230220-en

Max time kernel

9s

Max time network

11s

Command Line

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

Signatures

AsyncRat

rat asyncrat

Async RAT payload

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\system32\WerFault.exe C:\Users\Admin\AppData\Local\Temp\install.exe

Processes

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 3632 -s 1000

Network

Country Destination Domain Proto
US 8.8.8.8:53 52.4.107.13.in-addr.arpa udp

Files

memory/3632-121-0x0000000000910000-0x0000000000922000-memory.dmp

memory/3632-122-0x0000000002980000-0x0000000002990000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-27 06:19

Reported

2023-04-27 06:19

Platform

win10v2004-20230220-en

Max time kernel

17s

Max time network

20s

Command Line

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

Signatures

AsyncRat

rat asyncrat

Async RAT payload

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\system32\WerFault.exe C:\Users\Admin\AppData\Local\Temp\install.exe

Processes

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 456 -p 4236 -ip 4236

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 4236 -s 1084

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp

Files

memory/4236-133-0x0000000000270000-0x0000000000282000-memory.dmp

memory/4236-134-0x000000001AED0000-0x000000001AEE0000-memory.dmp