Overview

overview

10

Static

static

3

5946d6d8c8...c1.exe

windows7-x64

10

5946d6d8c8...c1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/03/2024, 21:10

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target

    5946d6d8c855c5ffb214f2880891a2290d229feb484ffb4c90758b47d10feec1.exe

  • Size

    2.6MB

  • MD5

    51740a4c1b21548a0bdf5c62fd3ed481

  • SHA1

    d77a75714d66059140b8b121f726a7fcaa6a8dca

  • SHA256

    5946d6d8c855c5ffb214f2880891a2290d229feb484ffb4c90758b47d10feec1

  • SHA512

    322d7661e46d9f3b6e799821b70d38b18d41b959d199e7817a194c464bf7298f40a3025a96fb002dc1182ac9fe33d0e8a2c72a552bed895b50b2d53da7d0582e

  • SSDEEP

    24576:XF9CM6qWfUbscd8T6Dowv2/uLUVLbm9RVV6HZwf2pj+HvaI9Dl7Rk7HM74T1sY6+:7Cvqd8TS9xSZwf2pTax9k48r6Tvq

Score
10/10
quasarvictimspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

victim

C2

193.161.193.99:39207

Mutex

QSR_MUTEX_BR32HV7NKNSNW84AXw

Attributes
  • encryption_key

    q4ydm98jmmYWnZF1LzIQ

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5946d6d8c855c5ffb214f2880891a2290d229feb484ffb4c90758b47d10feec1.exe
    "C:\Users\Admin\AppData\Local\Temp\5946d6d8c855c5ffb214f2880891a2290d229feb484ffb4c90758b47d10feec1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3964

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1888-0-0x00007FF766870000-0x00007FF766B23000-memory.dmp

          Filesize

          2.7MB

          Download

        • memory/3964-2-0x0000000000400000-0x000000000045E000-memory.dmp

          Filesize

          376KB

          Download

        • memory/3964-3-0x0000000075240000-0x00000000759F0000-memory.dmp

          Filesize

          7.7MB

          Download

        • memory/3964-4-0x0000000005BA0000-0x0000000006144000-memory.dmp

          Filesize

          5.6MB

          Download

        • memory/3964-5-0x00000000055F0000-0x0000000005682000-memory.dmp

          Filesize

          584KB

          Download

        • memory/3964-6-0x00000000055D0000-0x00000000055E0000-memory.dmp

          Filesize

          64KB

          Download

        • memory/3964-7-0x0000000005990000-0x00000000059F6000-memory.dmp

          Filesize

          408KB

          Download

        • memory/3964-8-0x00000000065B0000-0x00000000065C2000-memory.dmp

          Filesize

          72KB

          Download

        • memory/3964-9-0x00000000069F0000-0x0000000006A2C000-memory.dmp

          Filesize

          240KB

          Download

        • memory/3964-11-0x0000000006D70000-0x0000000006D7A000-memory.dmp

          Filesize

          40KB

          Download

        • memory/3964-12-0x0000000075240000-0x00000000759F0000-memory.dmp

          Filesize

          7.7MB

          Download

        • memory/3964-13-0x00000000055D0000-0x00000000055E0000-memory.dmp

          Filesize

          64KB

          Download