Analysis

  • max time kernel
    149s
  • max time network
    154s
  • 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 19:08

General

  • Target

    hopefully working.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
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 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\hopefully working.exe
    "C:\Users\Admin\AppData\Local\Temp\hopefully working.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2404
    • 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:4908
    • 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:4048
      • 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:2316
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /0
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    3.1MB

    MD5

    d99ad666c46f6027182170b415628651

    SHA1

    95e57ce111b72ea7b062e3d87165416eb6ee6141

    SHA256

    3d8d2e7e8d205f96165c848b68671b13fc419ae0429a6079999344a925f44d41

    SHA512

    af808083c25b323120bcee39189fc06391a97f54dc11724c33070dfe6bddf32dbd2fef4543a8202eec5d77a7b2d25a76dcb952de48d5c5b81bc0cae8d4bddacc

  • memory/2404-0-0x00007FF9024F3000-0x00007FF9024F5000-memory.dmp

    Filesize

    8KB

  • memory/2404-1-0x0000000000DF0000-0x0000000001114000-memory.dmp

    Filesize

    3.1MB

  • memory/2404-2-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

    Filesize

    10.8MB

  • memory/2404-10-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4048-9-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4048-11-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4048-12-0x000000001AFD0000-0x000000001B020000-memory.dmp

    Filesize

    320KB

  • memory/4048-13-0x000000001D190000-0x000000001D242000-memory.dmp

    Filesize

    712KB

  • memory/4048-27-0x00007FF9024F0000-0x00007FF902FB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4968-15-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-16-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-21-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-26-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-25-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-24-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-23-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-22-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-20-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB

  • memory/4968-14-0x00000204A3B60000-0x00000204A3B61000-memory.dmp

    Filesize

    4KB