Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-12-2024 19:11

General

  • Target

    hopefullyworking.exe

  • Size

    3.1MB

  • MD5

    d99ad666c46f6027182170b415628651

  • SHA1

    95e57ce111b72ea7b062e3d87165416eb6ee6141

  • SHA256

    3d8d2e7e8d205f96165c848b68671b13fc419ae0429a6079999344a925f44d41

  • SHA512

    af808083c25b323120bcee39189fc06391a97f54dc11724c33070dfe6bddf32dbd2fef4543a8202eec5d77a7b2d25a76dcb952de48d5c5b81bc0cae8d4bddacc

  • SSDEEP

    49152:HvIcfX2hcawDEhPLl8r/ptXpga584hxOEMkak/Jx3oGdq7sfTHHB72eh2NT:HvBv2hcawDEhPLl8r/XXpga584hx99

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

minecraft_updater

C2

98.97.12.133:631

98.97.12.133:41685

98.97.12.133:5353

98.97.12.133:34735

Mutex

182d06ff-972f-4a96-b344-59a01694d374

Attributes
  • encryption_key

    C5904FDD788EA00F921C538B9FE80C0B0A0DE728

  • install_name

    MinecraftUpdater.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    MinecraftUpdater

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\hopefullyworking.exe
    "C:\Users\Admin\AppData\Local\Temp\hopefullyworking.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "MinecraftUpdater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\MinecraftUpdater.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:924
    • C:\Users\Admin\AppData\Roaming\SubDir\MinecraftUpdater.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\MinecraftUpdater.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "MinecraftUpdater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\MinecraftUpdater.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\SubDir\MinecraftUpdater.exe

    Filesize

    3.1MB

    MD5

    d99ad666c46f6027182170b415628651

    SHA1

    95e57ce111b72ea7b062e3d87165416eb6ee6141

    SHA256

    3d8d2e7e8d205f96165c848b68671b13fc419ae0429a6079999344a925f44d41

    SHA512

    af808083c25b323120bcee39189fc06391a97f54dc11724c33070dfe6bddf32dbd2fef4543a8202eec5d77a7b2d25a76dcb952de48d5c5b81bc0cae8d4bddacc

  • memory/3372-10-0x00007FFB33810000-0x00007FFB342D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3372-11-0x00007FFB33810000-0x00007FFB342D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3372-12-0x000000001D960000-0x000000001D9B0000-memory.dmp

    Filesize

    320KB

  • memory/3372-13-0x000000001DA70000-0x000000001DB22000-memory.dmp

    Filesize

    712KB

  • memory/3372-14-0x00007FFB33810000-0x00007FFB342D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3644-0-0x00007FFB33813000-0x00007FFB33815000-memory.dmp

    Filesize

    8KB

  • memory/3644-1-0x0000000000DA0000-0x00000000010C4000-memory.dmp

    Filesize

    3.1MB

  • memory/3644-2-0x00007FFB33810000-0x00007FFB342D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3644-9-0x00007FFB33810000-0x00007FFB342D1000-memory.dmp

    Filesize

    10.8MB