Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    08/07/2026, 03:51

General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260708-eergksat2w
  • SHA256 128c5fe618646deb4464ed81ff9498031900942834ee88b06aa2687c89e60334
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • happy-birthday-to-you.net/vi-vn/:6606

  • happy-birthday-to-you.net/vi-vn/:7707

  • happy-birthday-to-you.net/vi-vn/:8808

  • happy-birthday-to-you.net/vi-vn/:443

  • happy-birthday-to-you.net/vi-vn/:80

  • happy-birthday-to-you.net/vi-vn/:8844

  • happy-birthday-to-you.net/vi-vn/:22

  • happy-birthday-to-you.net/vi-vn/:53

Mutex
  • MA2poGKkAtqX

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
    "C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:4448

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/4448-0-0x0000000000290000-0x00000000002A2000-memory.dmp

        memory/4448-1-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

        memory/4448-2-0x0000000004DD0000-0x0000000004DE0000-memory.dmp