Overview

overview

10

Static

static

10

tmp439zstjv.exe

windows10-ltsc_2021-x64

10

tmp439zstjv.exe

windows10-2004-x64

10

tmp439zstjv.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/06/2026, 07:31

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General

  • Target
    tmp439zstjv.exe
  • Size 45KB
  • Sample260602-jcc9dsf141
  • SHA256 5c83664de4b3c410b8f87af9281e10dfaa3bd691d8c8fe5dec53d964300dc179
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdiscoveryasyncratrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • 123b-123.com:6606

  • 123b-123.com:7707

  • 123b-123.com:8808

  • 123b-123.com:443

  • 123b-123.com:80

  • 123b-123.com:8844

  • 123b-123.com:22

  • 123b-123.com:53

  • 123b-mb.com:6606

  • 123b-mb.com:7707

  • 123b-mb.com:8808

  • 123b-mb.com:443

  • 123b-mb.com:80

  • 123b-mb.com:8844

  • 123b-mb.com:22

  • 123b-mb.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#.

    ratasyncrat
  • 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.

    discovery
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp439zstjv.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp439zstjv.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1856

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/1856-0-0x0000000000830000-0x0000000000842000-memory.dmp
        Download

        memory/1856-1-0x0000000005270000-0x0000000005280000-memory.dmp
        Download

        memory/1856-2-0x0000000005270000-0x0000000005280000-memory.dmp
        Download