Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    18/05/2026, 15:44

General

  • Target
    AsyncClient.exe
  • Size 45KB
  • Sample260518-s6rtbafs8v
  • SHA256 20ff8e14e2bb846a860091dd8046d4a53513ef2b37c4a530f41a82a68b50ba25
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • ga888vn.ru.com:6606

  • ga888vn.ru.com:7707

  • ga888vn.ru.com:8808

  • ga888vn.ru.com:443

  • ga888vn.ru.com:80

  • ga888vn.ru.com:8844

  • ga888vn.ru.com:22

  • ga888vn.ru.com:53

  • kjc.sa.com:6606

  • kjc.sa.com:7707

  • kjc.sa.com:8808

  • kjc.sa.com:443

  • kjc.sa.com:80

  • kjc.sa.com:8844

  • kjc.sa.com:22

  • kjc.sa.com:53

Mutex
  • FtTRmAL1FxCo

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#.

  • Unexpected DNS network traffic destination 2 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • 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⤵
    • Unexpected DNS network traffic destination
    • System Location Discovery: System Language Discovery
    PID:4332

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/4332-0-0x0000000000490000-0x00000000004A2000-memory.dmp

        memory/4332-1-0x0000000002810000-0x0000000002820000-memory.dmp

        memory/4332-2-0x0000000002810000-0x0000000002820000-memory.dmp