Analysis

  • max time kernel
    116s
  • max time network
    117s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29-06-2024 11:25

General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    38156fe138e7373db14d986ee33d4ea8

  • SHA1

    caf166611971c6a8352b22eede79cea92aa344b8

  • SHA256

    dd0613d4b34cf59b2ea9a3a0a9f4ce1c02dd0601c0240f61e2b980e16c42667a

  • SHA512

    ebcca06582347877ff1b6da58400b3682d998d1b223eb49cc93d4da523c70dc26a1cc4f1ccb1081d7295a1b9906417b78b0d63c685bc93d9ac7db517ddc5d241

  • SSDEEP

    49152:SvnI22SsaNYfdPBldt698dBcjH0H4oNbRvLoGddTHHB72eh2NT:SvI22SsaNYfdPBldt6+dBcjH0Yov

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

TESTIP

C2

8.tcp.ngrok.io:15015

Mutex

7a69ad86-36ff-45e8-ba4b-800fbf776712

Attributes
  • encryption_key

    562515CBE0241F4FD48C91375ED3063F997D8AEE

  • 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.

  • Quasar payload 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1436-0-0x00007FFF3C063000-0x00007FFF3C065000-memory.dmp

    Filesize

    8KB

  • memory/1436-1-0x0000000000010000-0x0000000000334000-memory.dmp

    Filesize

    3.1MB

  • memory/1436-2-0x00007FFF3C060000-0x00007FFF3CB22000-memory.dmp

    Filesize

    10.8MB

  • memory/1436-3-0x000000001B040000-0x000000001B090000-memory.dmp

    Filesize

    320KB

  • memory/1436-4-0x000000001B5B0000-0x000000001B662000-memory.dmp

    Filesize

    712KB

  • memory/1436-7-0x000000001B4F0000-0x000000001B502000-memory.dmp

    Filesize

    72KB

  • memory/1436-8-0x000000001B550000-0x000000001B58C000-memory.dmp

    Filesize

    240KB

  • memory/1436-9-0x000000001CBF0000-0x000000001D118000-memory.dmp

    Filesize

    5.2MB

  • memory/1436-11-0x00007FFF3C063000-0x00007FFF3C065000-memory.dmp

    Filesize

    8KB

  • memory/1436-12-0x00007FFF3C060000-0x00007FFF3CB22000-memory.dmp

    Filesize

    10.8MB