quasar | a94e45818c0b816f85d0c2608c0a1b03e75090b2c5930f20a42c7d127579e5e9 | Triage

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Overview

overview

Static

static

Client-built.exe

windows7-x64

Client-built.exe

windows10-2004-x64

Sharing

General

Target

Client-built.exe
Size

3.1MB
Sample

250327-t8p8yavwcz
MD5

d99d7d556d5021fbd6926bc2dbf937cb
SHA1

a84dba6c50fb7a9fb96a88034a0b0beca902d816
SHA256

a94e45818c0b816f85d0c2608c0a1b03e75090b2c5930f20a42c7d127579e5e9
SHA512

41b1f8b7887d6288bdc868ce941c2368e576503c272e0a48f9c662e67ee253ea62c5cef3a34a25d15515e37175465c281f8219450542c18db7d5326423cae8c9
SSDEEP

49152:Wvkt62XlaSFNWPjljiFa2RoUYI59RJ6ubR3LoGdroTHHB72eh2NT:Wv462XlaSFNWPjljiFXRoUYI59RJ6ob

Score

10^/10

quasar office04 spyware trojan

Static task

static1

office04 quasar

3 signatures

Behavioral task

behavioral1

Sample

Client-built.exe

Resource

win7-20250207-en

quasar office04 spyware trojan

windows7-x64

9 signatures

150 seconds

Behavioral task

behavioral2

Sample

Client-built.exe

Resource

win10v2004-20250314-en

quasar office04 spyware trojan

windows10-2004-x64

9 signatures

150 seconds

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.0.20:4782

Mutex

09fd8aa4-f8ef-40d0-96f7-029c82b74a3a

Attributes

encryption_key
5FA4C5B780FA0149296752FBE0A794A5BF0E5B11
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
dont mind this
subdirectory
SubDir

Targets

- Target
  
  Client-built.exe
- Size
  
  3.1MB
- MD5
  
  d99d7d556d5021fbd6926bc2dbf937cb
- SHA1
  
  a84dba6c50fb7a9fb96a88034a0b0beca902d816
- SHA256
  
  a94e45818c0b816f85d0c2608c0a1b03e75090b2c5930f20a42c7d127579e5e9
- SHA512
  
  41b1f8b7887d6288bdc868ce941c2368e576503c272e0a48f9c662e67ee253ea62c5cef3a34a25d15515e37175465c281f8219450542c18db7d5326423cae8c9
- SSDEEP
  
  49152:Wvkt62XlaSFNWPjljiFa2RoUYI59RJ6ubR3LoGdroTHHB72eh2NT:Wv462XlaSFNWPjljiFXRoUYI59RJ6ob
Score

10^/10

quasar office04 spyware trojan
- Quasar RAT
  Quasar is an open source Remote Access Tool.
  trojan spyware quasar
- Quasar family
  quasar
- Quasar payload
- Executes dropped EXE
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Scheduled Task

Persistence

Scheduled Task/Job

Scheduled Task

Privilege Escalation

Scheduled Task/Job

Scheduled Task

Defense Evasion

Credential Access

Discovery

Query Registry

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

quasaroffice04spywaretrojan

behavioral2

quasaroffice04spywaretrojan

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