Overview

overview

10

Static

static

10

bd1b33442d...d3.exe

windows10-2004-x64

10

bd1b33442d...d3.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/09/2026, 10:01

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General

  • Target
    bd1b33442db53e9e5ae3f93ae771cfc8531b75fbcd811d86eb13c844257675d3.exe
  • Size 45KB
  • Sample260905-l19cvasaph
  • SHA256 bd1b33442db53e9e5ae3f93ae771cfc8531b75fbcd811d86eb13c844257675d3
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultcommand_and_controldefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • tuoidaythi.vip:80

  • tuoidaythi.vip:22

  • tuoidaythi.vip:8080

  • tuoidaythi.vip:8880

  • tuoidaythi.vip:2052

  • tuoidaythi.vip:2082

  • tuoidaythi.vip:2086

  • tuoidaythi.vip:2095

  • tuoidaythi.vip:443

  • tuoidaythi.vip:2053

  • tuoidaythi.vip:2083

  • tuoidaythi.vip:2087

  • tuoidaythi.vip:2096

  • tuoidaythi.vip:8443

  • www.tuoidaythi.vip:80

  • www.tuoidaythi.vip:22

  • www.tuoidaythi.vip:8080

  • www.tuoidaythi.vip:8880

  • www.tuoidaythi.vip:2052

  • www.tuoidaythi.vip:2082

Mutex

  • sOQ96FE6qEU9

Attributes
  • delay

    0

  • install

    true

  • install_file

    ljr2.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Executes dropped EXE 2 IoCs
  • Outbound SSH connection to public host 2 TTPs 2 IoCs

    SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

    command_and_control
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

    discovery
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bd1b33442db53e9e5ae3f93ae771cfc8531b75fbcd811d86eb13c844257675d3.exe
    "C:\Users\Admin\AppData\Local\Temp\bd1b33442db53e9e5ae3f93ae771cfc8531b75fbcd811d86eb13c844257675d3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3576
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ljr2" /tr '"C:\Users\Admin\AppData\Roaming\ljr2.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2712
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "ljr2" /tr '"C:\Users\Admin\AppData\Roaming\ljr2.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1356
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp27B2.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2332
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2784
      • C:\Users\Admin\AppData\Roaming\ljr2.exe
        "C:\Users\Admin\AppData\Roaming\ljr2.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2856
  • C:\Users\Admin\AppData\Roaming\ljr2.exe
    "C:\Users\Admin\AppData\Roaming\ljr2.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4604

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp27B2.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp27B2.tmp.bat
        • Size 148B
        • SHA256 e477057e3e27bd063b5ec4b4cba5b7e932abc68adfe2c525ff88c84d7e54c8ae
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        ljr2.exe
        • Path C:\Users\Admin\AppData\Roaming\ljr2.exe
        • Size 45KB
        • SHA256 bd1b33442db53e9e5ae3f93ae771cfc8531b75fbcd811d86eb13c844257675d3
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3576-0-0x0000000074902000-0x0000000074903000-memory.dmp
        Download

        memory/3576-1-0x00000000008A0000-0x00000000008B2000-memory.dmp
        Download

        memory/3576-2-0x00000000748F0000-0x00000000750AC000-memory.dmp
        Download

        memory/3576-3-0x00000000052E0000-0x000000000537C000-memory.dmp
        Download

        memory/3576-8-0x00000000748F0000-0x00000000750AC000-memory.dmp
        Download

        memory/4604-12-0x00000000747E0000-0x0000000074F9C000-memory.dmp
        Download

        memory/4604-14-0x00000000747E0000-0x0000000074F9C000-memory.dmp
        Download