Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/05/2026, 11:18

General

  • Target
    gstub.exe
  • Size 45KB
  • Sample260502-ner8jsdw8w
  • SHA256 e8aeef930fc9dc8b44df1147e3ccd1ed5e9d414eaf378befa1266709295766cd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

Mutex
  • Kij5AfgdYrlk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/1tWiD9sJ

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • 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.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\gstub.exe
    "C:\Users\Admin\AppData\Local\Temp\gstub.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4912

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/4912-0-0x0000000000AF0000-0x0000000000B02000-memory.dmp

        memory/4912-1-0x00000000055B0000-0x00000000055C0000-memory.dmp

        memory/4912-2-0x0000000001340000-0x000000000141C000-memory.dmp

        memory/4912-3-0x0000000001680000-0x00000000016FB000-memory.dmp

        memory/4912-4-0x00000000055B0000-0x00000000055C0000-memory.dmp