Analysis

  • max time kernel
    141s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/08/2024, 14:25

General

  • Target
    Incog_fixerV2.exe
  • Size 3.1MB
  • Sample240812-rrnyfavejm
  • SHA256 1a89e7f9a21eedd8862f229cf18b9dbe2bc6be6702e8673b2b0ec6bb53c05a97
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Discord

C2
  • 192.168.50.170:4782

Mutex
  • 8bb06dbe-de14-4261-88ca-56b71264b302

Attributes
  • encryption_key

    E76E0A20BF024E9F41CD770C7B037D01CDAC1B04

  • install_name

    Incognito.exe

  • log_directory

    HSHSS

  • reconnect_delay

    3000

  • startup_key

    Incognito_fixer

  • subdirectory

    JJ

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 5 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\Incog_fixerV2.exe
    "C:\Users\Admin\AppData\Local\Temp\Incog_fixerV2.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1232
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Incognito_fixer" /sc ONLOGON /tr "C:\Windows\system32\JJ\Incognito.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2384
    • C:\Windows\system32\JJ\Incognito.exe
      "C:\Windows\system32\JJ\Incognito.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5104
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "Incognito_fixer" /sc ONLOGON /tr "C:\Windows\system32\JJ\Incognito.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4864

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Incognito.exe

        • Path C:\Windows\System32\JJ\Incognito.exe
        • Size 3.1MB
        • SHA256 1a89e7f9a21eedd8862f229cf18b9dbe2bc6be6702e8673b2b0ec6bb53c05a97
        • MD5 SHA1 SHA512 SSDEEP

        memory/1232-0-0x00007FFE84CE3000-0x00007FFE84CE5000-memory.dmp

        memory/1232-1-0x0000000000450000-0x0000000000774000-memory.dmp

        memory/1232-2-0x00007FFE84CE0000-0x00007FFE857A1000-memory.dmp

        memory/1232-9-0x00007FFE84CE0000-0x00007FFE857A1000-memory.dmp

        memory/5104-10-0x00007FFE84CE0000-0x00007FFE857A1000-memory.dmp

        memory/5104-11-0x00007FFE84CE0000-0x00007FFE857A1000-memory.dmp

        memory/5104-12-0x00000000031B0000-0x0000000003200000-memory.dmp

        memory/5104-13-0x000000001C390000-0x000000001C442000-memory.dmp

        memory/5104-14-0x00007FFE84CE0000-0x00007FFE857A1000-memory.dmp