Overview

overview

10

Static

static

10

Uni.exe

windows10-1703-x64

10

Uni.exe

windows10-2004-x64

10

Uni.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    27s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-06-2024 19:33

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General

  • Target

    Uni.exe

  • Size

    348KB

  • MD5

    2c6a48d7339cbf28d46ee837fd2c64b9

  • SHA1

    b72ed6d53b252117f4159908adbc6694e6d73dc5

  • SHA256

    45213c63aaaf31c6b3a20b632e6b6f0efcc5ca693528bff63d02752f48f17590

  • SHA512

    ee1ed8b2efcbc08f811a4fc85fa68ec7bc698bb8be9c4856f82113533097c5e960e03bac4a0fb45f53fa7fb3acff49e32a0ce585e427d6245b4c6106c56b573d

  • SSDEEP

    6144:d7EHwNHJsa2fqt+XoDk8Q/7ew6sQ2dD0S+AxE6mlZ8ebMZJLlKtCmIEOfYsQhm+P:txpsanAHKQmIVfYsQJie

Score
10/10
quasarcryptedspywaretrojan

Malware Config

Extracted

Family

quasar

Version

15.5.0

Botnet

Crypted

C2

147.185.221.20:49485

Mutex

QSR_MUTEX_k8eftMEuU7a4TIUS2H

Attributes
  • encryption_key

    7VNoqFBD2kgjE7AIWeFj

  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Uni.exe
    "C:\Users\Admin\AppData\Local\Temp\Uni.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:5004
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3776 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2716

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/5004-0-0x0000000074C2E000-0x0000000074C2F000-memory.dmp
      Filesize

      4KB

      Download
    • memory/5004-1-0x0000000000660000-0x00000000006BE000-memory.dmp
      Filesize

      376KB

      Download
    • memory/5004-2-0x0000000005690000-0x0000000005C34000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/5004-3-0x00000000050E0000-0x0000000005172000-memory.dmp
      Filesize

      584KB

      Download
    • memory/5004-4-0x0000000074C20000-0x00000000753D0000-memory.dmp
      Filesize

      7.7MB

      Download
    • memory/5004-5-0x00000000054D0000-0x0000000005536000-memory.dmp
      Filesize

      408KB

      Download
    • memory/5004-6-0x00000000060E0000-0x00000000060F2000-memory.dmp
      Filesize

      72KB

      Download
    • memory/5004-7-0x0000000006520000-0x000000000655C000-memory.dmp
      Filesize

      240KB

      Download
    • memory/5004-9-0x00000000068A0000-0x00000000068AA000-memory.dmp
      Filesize

      40KB

      Download
    • memory/5004-10-0x0000000074C2E000-0x0000000074C2F000-memory.dmp
      Filesize

      4KB

      Download
    • memory/5004-11-0x0000000074C20000-0x00000000753D0000-memory.dmp
      Filesize

      7.7MB

      Download