Analysis

  • max time kernel
    149s
  • max time network
    143s
  • 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 19:03

General

  • Target

    clienbt.exe

  • Size

    3.1MB

  • MD5

    94f7204cc10fd667deb7368911210228

  • SHA1

    93c8e0d5b2194b1ae39537bfd3fe8ebd687c2e23

  • SHA256

    dbd77fcf6dbd2f136713cfe6b28d7f79d1f5f9cdbb77b4431d3c1f5ed9a487a2

  • SHA512

    1724176ea2e394f829b78db21831481696ee612c4bea3daba4c4e86ddd3e3dc6de1a77a901ed28e416f9869a135bf0f18d705fea650c177cb0160eccf5a4f2d0

  • SSDEEP

    49152:nvwhBYjCO4Dt2d5aKCuVPzlEmVQL0wvwkaf7zboGdOTHHB72eh2NT:nvit2d5aKCuVPzlEmVQ0wvwff7H

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

minecraft_updater

C2

192.168.7.110:631

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\clienbt.exe
    "C:\Users\Admin\AppData\Local\Temp\clienbt.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3108
    • 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:4456
    • 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:2452
      • 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:4940
  • 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:4052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    3.1MB

    MD5

    94f7204cc10fd667deb7368911210228

    SHA1

    93c8e0d5b2194b1ae39537bfd3fe8ebd687c2e23

    SHA256

    dbd77fcf6dbd2f136713cfe6b28d7f79d1f5f9cdbb77b4431d3c1f5ed9a487a2

    SHA512

    1724176ea2e394f829b78db21831481696ee612c4bea3daba4c4e86ddd3e3dc6de1a77a901ed28e416f9869a135bf0f18d705fea650c177cb0160eccf5a4f2d0

  • memory/2452-10-0x00007FFCA1610000-0x00007FFCA20D1000-memory.dmp

    Filesize

    10.8MB

  • memory/2452-11-0x00007FFCA1610000-0x00007FFCA20D1000-memory.dmp

    Filesize

    10.8MB

  • memory/2452-12-0x000000001BAC0000-0x000000001BB10000-memory.dmp

    Filesize

    320KB

  • memory/2452-13-0x000000001C0E0000-0x000000001C192000-memory.dmp

    Filesize

    712KB

  • memory/2452-14-0x00007FFCA1610000-0x00007FFCA20D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3108-0-0x00007FFCA1613000-0x00007FFCA1615000-memory.dmp

    Filesize

    8KB

  • memory/3108-1-0x0000000000B10000-0x0000000000E34000-memory.dmp

    Filesize

    3.1MB

  • memory/3108-2-0x00007FFCA1610000-0x00007FFCA20D1000-memory.dmp

    Filesize

    10.8MB

  • memory/3108-9-0x00007FFCA1610000-0x00007FFCA20D1000-memory.dmp

    Filesize

    10.8MB

  • memory/4052-15-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-17-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-16-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-21-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-27-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-26-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-25-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-24-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-23-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB

  • memory/4052-22-0x000001B8B1010000-0x000001B8B1011000-memory.dmp

    Filesize

    4KB