Malware Analysis Report

2024-10-19 08:41

Sample ID 240421-bgdrqaeh29
Target Gtag_spoofer-main.zip
SHA256 361caae62a252ed7c2c8020dc16ab8dd73debaebbd528268b06b9172fb7e996b
Tags
office04 quasar 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

361caae62a252ed7c2c8020dc16ab8dd73debaebbd528268b06b9172fb7e996b

Threat Level: Known bad

The file Gtag_spoofer-main.zip was found to be: Known bad.

Malicious Activity Summary

office04 quasar spyware trojan

Quasar RAT

Quasar family

Quasar payload

Executes dropped EXE

Unsigned PE

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-21 01:06

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

2024-04-21 01:06

Reported

2024-04-21 01:07

Platform

win11-20240412-en

Max time kernel

38s

Max time network

42s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Gtag_spoofer-main\Gtagspoofer_1.4.7.exe"

Signatures

Quasar RAT

trojan spyware 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\AppData\Roaming\SubDir\Client.exe N/A

Creates scheduled task(s)

persistence
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: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Gtag_spoofer-main\Gtagspoofer_1.4.7.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe N/A

Suspicious use of SetWindowsHookEx

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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\Gtag_spoofer-main\Gtagspoofer_1.4.7.exe

"C:\Users\Admin\AppData\Local\Temp\Gtag_spoofer-main\Gtagspoofer_1.4.7.exe"

C:\Windows\SYSTEM32\schtasks.exe

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

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

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

C:\Windows\SYSTEM32\schtasks.exe

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

Network

Country Destination Domain Proto
N/A 192.168.0.53:4782 tcp
US 8.8.8.8:53 53.0.168.192.in-addr.arpa udp
N/A 192.168.0.53:4782 tcp
N/A 192.168.0.53:4782 tcp
N/A 192.168.0.53:4782 tcp
N/A 192.168.0.53:4782 tcp
N/A 192.168.0.53:4782 tcp
N/A 192.168.0.53:4782 tcp
GB 2.18.66.73:443 tcp
N/A 192.168.0.53:4782 tcp
GB 2.18.66.73:443 tcp
US 13.89.179.11:443 browser.pipe.aria.microsoft.com tcp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp
N/A 192.168.0.53:4782 tcp
GB 2.18.66.73:443 tcp
N/A 192.168.0.53:4782 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
NL 23.62.61.155:443 r.bing.com tcp
N/A 192.168.0.53:4782 tcp

Files

memory/3880-0-0x0000000000EF0000-0x0000000001214000-memory.dmp

memory/3880-1-0x00007FFE2DAC0000-0x00007FFE2E582000-memory.dmp

memory/3880-2-0x000000001C150000-0x000000001C160000-memory.dmp

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

MD5 5110076773db1352ac91ef673fef465f
SHA1 415ee6c130d71942a7197642d1a4ae7efb637ea8
SHA256 8575df8567eb8fbb7b07954de694590e07757edf2bfcf3b623b1df9790ce698d
SHA512 a9c081c768e3c72c8a8bfda715575e50a2a087e4dc1ec4e104bc761549af3c2fb5a3e9097c03bacec4940e6d7de65aa5a75dfc17ed784d4453f9de69e7ff2877

memory/3880-9-0x00007FFE2DAC0000-0x00007FFE2E582000-memory.dmp

memory/2000-10-0x00007FFE2DAC0000-0x00007FFE2E582000-memory.dmp

memory/2000-11-0x00000000016E0000-0x00000000016F0000-memory.dmp

memory/2000-12-0x000000001C7C0000-0x000000001C810000-memory.dmp

memory/2000-13-0x000000001C8D0000-0x000000001C982000-memory.dmp

memory/2000-14-0x00007FFE2DAC0000-0x00007FFE2E582000-memory.dmp

memory/2000-15-0x00000000016E0000-0x00000000016F0000-memory.dmp

memory/2000-16-0x000000001D210000-0x000000001D738000-memory.dmp