Malware Analysis Report

2025-01-18 04:28

Sample ID 231214-h4mfpscagm
Target d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09
SHA256 d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09
Tags
office04 quasar spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09

Threat Level: Known bad

The file d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09 was found to be: Known bad.

Malicious Activity Summary

office04 quasar spyware trojan

Quasar RAT

Quasar family

Quasar payload

Executes dropped EXE

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-14 07:17

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

2023-12-14 07:17

Reported

2023-12-14 07:20

Platform

win10v2004-20231127-en

Max time kernel

151s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09.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\Synecs.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\SubDir\Synecs.exe N/A

Suspicious use of SetWindowsHookEx

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

Processes

C:\Users\Admin\AppData\Local\Temp\d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09.exe

"C:\Users\Admin\AppData\Local\Temp\d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 5.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
N/A 127.0.0.1:4782 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
N/A 127.0.0.1:4782 tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
US 8.8.8.8:53 168.117.168.52.in-addr.arpa udp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp
N/A 127.0.0.1:4782 tcp

Files

memory/1976-0-0x00000000006D0000-0x00000000009F6000-memory.dmp

memory/1976-1-0x00007FF9613F0000-0x00007FF961EB1000-memory.dmp

memory/1976-2-0x00000000011D0000-0x00000000011E0000-memory.dmp

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

MD5 f0207a4a17b47cba7d87142363b12477
SHA1 c2203e69e92e6ba6394e6f711429fadf8b65845e
SHA256 d2835aa9243d529d8d44846d383f97f1bb7b976bc4c378d29d2387d1ba6c1d09
SHA512 35f37bb38a070220dbe9f6511ab5bf8bca07fae46b5edefa5356a9294fc98b97735719410887b40776a7232711620f5c92f6bb45a7a54d597faef675196da810

memory/1976-8-0x00007FF9613F0000-0x00007FF961EB1000-memory.dmp

memory/4720-9-0x00007FF9613F0000-0x00007FF961EB1000-memory.dmp

memory/4720-10-0x0000000002700000-0x0000000002710000-memory.dmp

memory/4720-11-0x000000001B6D0000-0x000000001B720000-memory.dmp

memory/4720-12-0x000000001B7E0000-0x000000001B892000-memory.dmp

memory/4720-13-0x00007FF9613F0000-0x00007FF961EB1000-memory.dmp

memory/4720-14-0x0000000002700000-0x0000000002710000-memory.dmp