Malware Analysis Report

2024-09-22 06:59

Sample ID 240620-x7eycstfrg
Target smss.exe
SHA256 b9d269f2b05a9a972d83ec004aef9116da9776a2d2323eb4de05c283ead489ec
Tags
rat default asyncrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b9d269f2b05a9a972d83ec004aef9116da9776a2d2323eb4de05c283ead489ec

Threat Level: Known bad

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

Malicious Activity Summary

rat default asyncrat

AsyncRat

Async RAT payload

Asyncrat family

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-20 19:29

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

2024-06-20 19:29

Reported

2024-06-20 19:32

Platform

win10-20240404-en

Max time kernel

148s

Max time network

151s

Command Line

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

Signatures

AsyncRat

rat asyncrat

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 4.tcp.eu.ngrok.io N/A N/A
N/A 4.tcp.eu.ngrok.io N/A N/A
N/A 4.tcp.eu.ngrok.io N/A N/A
N/A 4.tcp.eu.ngrok.io N/A N/A
N/A 4.tcp.eu.ngrok.io N/A N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 75.59.127.3.in-addr.arpa udp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 3.127.253.86:11252 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 86.253.127.3.in-addr.arpa udp
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
DE 3.127.59.75:11252 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 4.tcp.eu.ngrok.io udp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 27.178.89.13.in-addr.arpa udp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp
DE 3.121.139.82:11252 4.tcp.eu.ngrok.io tcp

Files

memory/748-0-0x000000007325E000-0x000000007325F000-memory.dmp

memory/748-1-0x0000000000200000-0x0000000000212000-memory.dmp

memory/748-2-0x0000000073250000-0x000000007393E000-memory.dmp

memory/748-3-0x0000000004E40000-0x0000000004EA6000-memory.dmp

memory/748-4-0x00000000053A0000-0x000000000543C000-memory.dmp

memory/748-5-0x000000007325E000-0x000000007325F000-memory.dmp

memory/748-6-0x0000000073250000-0x000000007393E000-memory.dmp