Malware Analysis Report

2025-04-14 04:54

Sample ID 241214-d1sfbstkd1
Target Panel Ejecutador MTA 3.14.zip
SHA256 9261f3eefa0aef107e865784d8b8b62d4e7213056dfe535893920a344fa0d908
Tags
quasar office04 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

9261f3eefa0aef107e865784d8b8b62d4e7213056dfe535893920a344fa0d908

Threat Level: Known bad

The file Panel Ejecutador MTA 3.14.zip was found to be: Known bad.

Malicious Activity Summary

quasar office04 spyware trojan

Quasar family

Quasar RAT

Quasar payload

Executes dropped EXE

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-14 03:28

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-14 03:28

Reported

2024-12-14 03:29

Platform

win10ltsc2021-20241211-en

Max time kernel

22s

Max time network

28s

Command Line

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Panel Ejecutador MTA 3.14.zip"

Signatures

Quasar RAT

trojan spyware quasar

Quasar family

quasar

Quasar payload

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\Desktop\Panel Ejecutador MTA 3.14.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: 35 N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\Desktop\Panel Ejecutador MTA 3.14.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Program Files\7-Zip\7zFM.exe

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Panel Ejecutador MTA 3.14.zip"

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 --string-annotations=is-enterprise-managed=no --field-trial-handle=4028,i,13034162257960464555,14563862583435181672,262144 --variations-seed-version --mojo-platform-channel-handle=5068 /prefetch:8

C:\Users\Admin\Desktop\Panel Ejecutador MTA 3.14.exe

"C:\Users\Admin\Desktop\Panel Ejecutador MTA 3.14.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "WindowsUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe" /rl HIGHEST /f

C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe

"C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /create /tn "WindowsUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe" /rl HIGHEST /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
GB 2.20.12.74:80 msedge.b.tlu.dl.delivery.mp.microsoft.com tcp
US 8.8.8.8:53 edge.microsoft.com udp
US 8.8.8.8:53 edge.microsoft.com udp
US 13.107.21.239:443 edge.microsoft.com tcp
US 8.8.8.8:53 edgeassetservice.azureedge.net udp
US 8.8.8.8:53 edgeassetservice.azureedge.net udp
US 13.107.246.64:443 edgeassetservice.azureedge.net tcp
US 8.8.8.8:53 checkappexec.microsoft.com udp
GB 172.165.61.93:443 checkappexec.microsoft.com tcp
US 8.8.8.8:53 93.61.165.172.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 azxq0ap.localto.net udp
US 23.158.232.33:3425 azxq0ap.localto.net tcp
US 8.8.8.8:53 ipwho.is udp
DE 195.201.57.90:443 ipwho.is tcp
US 8.8.8.8:53 33.232.158.23.in-addr.arpa udp
US 8.8.8.8:53 90.57.201.195.in-addr.arpa udp
US 13.107.21.239:443 edge.microsoft.com tcp

Files

C:\Users\Admin\Desktop\Panel Ejecutador MTA 3.14.exe

MD5 5791d405ca0a97a89eeaeb4f2be628be
SHA1 a012d40aaaa01db12a83b0e4408d012fd383dd0b
SHA256 6c67a1bf1d558b31a790e4bdcef062c9b49f00a1b3d7361dfc8308d55b87bc5d
SHA512 3971447d6a5f1ffe51bb1acc0d2525aa5bca521358c67828e6bd983d68e8c22dfa83ab49109575bc113e13de861682af563a3ed21e5ef48cce1bfcdb8f1f2afd

memory/2660-4-0x00007FFA32253000-0x00007FFA32255000-memory.dmp

memory/2660-5-0x0000000000540000-0x0000000000896000-memory.dmp

memory/2660-6-0x00007FFA32250000-0x00007FFA32D12000-memory.dmp

memory/2660-9-0x00007FFA32250000-0x00007FFA32D12000-memory.dmp

memory/4504-10-0x0000000002FA0000-0x0000000002FF0000-memory.dmp

memory/4504-11-0x000000001CAF0000-0x000000001CBA2000-memory.dmp

memory/4504-12-0x0000000003010000-0x0000000003022000-memory.dmp

memory/4504-13-0x000000001B850000-0x000000001B88C000-memory.dmp