Malware Analysis Report

2025-01-18 04:28

Sample ID 240101-am723sgefr
Target binggo.exe
SHA256 fb9851c55cf1b38c16336e7bf2a27baf53f148b9349221c30a5964e0f9f4dfb9
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

fb9851c55cf1b38c16336e7bf2a27baf53f148b9349221c30a5964e0f9f4dfb9

Threat Level: Known bad

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

Malicious Activity Summary

office04 quasar spyware trojan

Quasar RAT

Quasar payload

Quasar family

Executes dropped EXE

Looks up external IP address via web service

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Runs ping.exe

Creates scheduled task(s)

Suspicious use of SetWindowsHookEx

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-01 00:20

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

2024-01-01 00:20

Reported

2024-01-01 00:23

Platform

win10-20231215-en

Max time kernel

152s

Max time network

164s

Command Line

"C:\Users\Admin\AppData\Local\Temp\binggo.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

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A

Enumerates physical storage devices

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

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2264 wrote to memory of 324 N/A C:\Users\Admin\AppData\Local\Temp\binggo.exe C:\Windows\SYSTEM32\schtasks.exe
PID 2264 wrote to memory of 324 N/A C:\Users\Admin\AppData\Local\Temp\binggo.exe C:\Windows\SYSTEM32\schtasks.exe
PID 2264 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\binggo.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2264 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\binggo.exe C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
PID 2324 wrote to memory of 300 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\SYSTEM32\schtasks.exe
PID 2324 wrote to memory of 300 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\SYSTEM32\schtasks.exe
PID 2324 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\SYSTEM32\schtasks.exe
PID 2324 wrote to memory of 3244 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\SYSTEM32\schtasks.exe
PID 2324 wrote to memory of 392 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\system32\cmd.exe
PID 2324 wrote to memory of 392 N/A C:\Users\Admin\AppData\Roaming\SubDir\Client.exe C:\Windows\system32\cmd.exe
PID 392 wrote to memory of 2364 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\chcp.com
PID 392 wrote to memory of 2364 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\chcp.com
PID 392 wrote to memory of 2644 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\PING.EXE
PID 392 wrote to memory of 2644 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\PING.EXE

Uses Task Scheduler COM API

persistence

Processes

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

"C:\Users\Admin\AppData\Local\Temp\binggo.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

C:\Windows\SYSTEM32\schtasks.exe

"schtasks" /delete /tn "Quasar Client Startup" /f

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VDZ2Pg3aagm5.bat" "

C:\Windows\system32\chcp.com

chcp 65001

C:\Windows\system32\PING.EXE

ping -n 10 localhost

Network

Country Destination Domain Proto
US 147.185.221.17:56251 tcp
US 8.8.8.8:53 17.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 how-additional.gl.at.ply.gg udp
US 147.185.221.17:56251 how-additional.gl.at.ply.gg tcp
US 8.8.8.8:53 17.ip.gl.ply.gg udp
US 147.185.221.17:56258 17.ip.gl.ply.gg tcp
US 8.8.8.8:53 ipwho.is udp
DE 195.201.57.90:443 ipwho.is tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 api.ipify.org udp
US 8.8.8.8:53 90.57.201.195.in-addr.arpa udp
US 104.237.62.212:443 api.ipify.org tcp
US 8.8.8.8:53 212.62.237.104.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp

Files

memory/2264-0-0x0000000000420000-0x0000000000744000-memory.dmp

memory/2264-1-0x00007FFDE7220000-0x00007FFDE7C0C000-memory.dmp

memory/2264-2-0x000000001B380000-0x000000001B390000-memory.dmp

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

MD5 1c09500c2e27a71099d2cdc6a660144e
SHA1 392df69940b87eec131bce600ed04ae0b22a556a
SHA256 fb9851c55cf1b38c16336e7bf2a27baf53f148b9349221c30a5964e0f9f4dfb9
SHA512 c3d1cea75668b249db1b57b2f3a715e8fa485654e60c88e482141395bc5fa6bad95765bf3603ab2410bc572735f7f652ff81c132dd51839152ba5670ad000bdb

memory/2324-8-0x00007FFDE7220000-0x00007FFDE7C0C000-memory.dmp

memory/2264-9-0x00007FFDE7220000-0x00007FFDE7C0C000-memory.dmp

memory/2324-10-0x000000001B6D0000-0x000000001B6E0000-memory.dmp

memory/2324-11-0x000000001C220000-0x000000001C270000-memory.dmp

memory/2324-12-0x000000001C330000-0x000000001C3E2000-memory.dmp

memory/2324-13-0x00007FFDE7220000-0x00007FFDE7C0C000-memory.dmp

memory/2324-16-0x000000001B6D0000-0x000000001B6E0000-memory.dmp

memory/2324-21-0x00007FFDE7220000-0x00007FFDE7C0C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\VDZ2Pg3aagm5.bat

MD5 739096ca10b82bfff49d6ddf773d8c46
SHA1 5c9e1a642bc7dcba852e96c2b3742e5010fbac3c
SHA256 025b94722cf3a0544284573ad71575fce45e8c3dfd71c5be43e7a36dff3a5a42
SHA512 8512eaba461a65066cce6a949adbee2f832793a6c7c307374d067a5fb1e42eccbe514b71640216e6de6a74093c443b24e3f6b9be346498914bf4938492aefb52