Malware Analysis Report

2024-10-19 06:32

Sample ID 240627-2t11wsyekq
Target Rat remove.bat
SHA256 a003924092f4eed3281ccd3f82d95548a809a09436ee07b01b6d738a7c1f809d
Tags
seroxen quasar persistence spyware trojan
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

a003924092f4eed3281ccd3f82d95548a809a09436ee07b01b6d738a7c1f809d

Threat Level: Known bad

The file Rat remove.bat was found to be: Known bad.

Malicious Activity Summary

seroxen quasar persistence spyware trojan

Quasar payload

Quasar RAT

Quasar family

Looks up external IP address via web service

Adds Run key to start application

Unsigned PE

Scheduled Task/Job: Scheduled Task

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-27 22:53

Signatures

Quasar family

quasar

Quasar payload

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-27 22:53

Reported

2024-06-27 22:56

Platform

win10v2004-20240226-en

Max time kernel

156s

Max time network

176s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Rat remove.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Defender Anti-Malware Disable Startup = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Rat remove.exe\"" C:\Users\Admin\AppData\Local\Temp\Rat remove.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Rat remove.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3248 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\Rat remove.exe C:\Windows\SysWOW64\schtasks.exe
PID 3248 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\Rat remove.exe C:\Windows\SysWOW64\schtasks.exe
PID 3248 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\Rat remove.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Rat remove.exe

"C:\Users\Admin\AppData\Local\Temp\Rat remove.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4092 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8

C:\Windows\SysWOW64\schtasks.exe

"schtasks" /create /tn "Windows Defender Anti-Malware Disable Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Rat remove.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 57.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 github.com udp
GB 20.26.156.215:443 github.com tcp
US 147.185.221.20:47638 tcp
US 8.8.8.8:53 20.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 215.156.26.20.in-addr.arpa udp

Files

memory/3248-0-0x000000007486E000-0x000000007486F000-memory.dmp

memory/3248-1-0x0000000000F40000-0x0000000000FAC000-memory.dmp

memory/3248-2-0x000000007486E000-0x000000007486F000-memory.dmp

memory/3248-3-0x0000000005F40000-0x00000000064E4000-memory.dmp

memory/3248-4-0x0000000001860000-0x00000000018F2000-memory.dmp

memory/3248-5-0x0000000074860000-0x0000000075010000-memory.dmp

memory/3248-6-0x0000000001900000-0x0000000001966000-memory.dmp

memory/3248-7-0x0000000074860000-0x0000000075010000-memory.dmp

memory/3248-8-0x0000000005ED0000-0x0000000005EE2000-memory.dmp

memory/3248-9-0x0000000006AD0000-0x0000000006B0C000-memory.dmp

memory/3248-10-0x00000000075E0000-0x00000000075EA000-memory.dmp