Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 10:38

General

  • Target
    e29dcd3b9dc4bee45adbf9f95307a0bfd77a42fd1b93a80b3319816bbf8186ae.exe
  • Size 45KB
  • Sample260803-mpff3agb47
  • SHA256 e29dcd3b9dc4bee45adbf9f95307a0bfd77a42fd1b93a80b3319816bbf8186ae
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • xemsexmy.org:80

  • xemsexmy.org:22

  • xemsexmy.org:8080

  • xemsexmy.org:8880

  • xemsexmy.org:2052

  • xemsexmy.org:2082

  • xemsexmy.org:2086

  • xemsexmy.org:2095

  • xemsexmy.org:443

  • xemsexmy.org:2053

  • xemsexmy.org:2083

  • xemsexmy.org:2087

  • xemsexmy.org:2096

  • xemsexmy.org:8443

  • www.xemsexmy.org:80

  • www.xemsexmy.org:22

  • www.xemsexmy.org:8080

  • www.xemsexmy.org:8880

  • www.xemsexmy.org:2052

  • www.xemsexmy.org:2082

Mutex
  • 2ZGlRLdFKAE1

Attributes
  • delay

    0

  • install

    true

  • install_file

    bxsc.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • 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.

  • 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.

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

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\e29dcd3b9dc4bee45adbf9f95307a0bfd77a42fd1b93a80b3319816bbf8186ae.exe
    "C:\Users\Admin\AppData\Local\Temp\e29dcd3b9dc4bee45adbf9f95307a0bfd77a42fd1b93a80b3319816bbf8186ae.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5876
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "bxsc" /tr '"C:\Users\Admin\AppData\Roaming\bxsc.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1712
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "bxsc" /tr '"C:\Users\Admin\AppData\Roaming\bxsc.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1180
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBC22.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1864
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:124
      • C:\Users\Admin\AppData\Roaming\bxsc.exe
        "C:\Users\Admin\AppData\Roaming\bxsc.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5536
  • C:\Users\Admin\AppData\Roaming\bxsc.exe
    "C:\Users\Admin\AppData\Roaming\bxsc.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4016

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpBC22.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpBC22.tmp.bat
        • Size 148B
        • SHA256 6d7aec88739d19fd6aa804c6d05d083fb6fac749702f576a38e71523278ba657
        • MD5 SHA1 SHA512 TLSH

        bxsc.exe

        • Path C:\Users\Admin\AppData\Roaming\bxsc.exe
        • Size 45KB
        • SHA256 e29dcd3b9dc4bee45adbf9f95307a0bfd77a42fd1b93a80b3319816bbf8186ae
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4016-12-0x0000000073D32000-0x0000000073D33000-memory.dmp

        memory/4016-14-0x0000000073D32000-0x0000000073D33000-memory.dmp

        memory/5876-0-0x0000000074522000-0x0000000074523000-memory.dmp

        memory/5876-1-0x0000000000110000-0x0000000000122000-memory.dmp

        memory/5876-2-0x0000000074510000-0x0000000074CCC000-memory.dmp

        memory/5876-3-0x0000000004CD0000-0x0000000004D6C000-memory.dmp

        memory/5876-8-0x0000000074510000-0x0000000074CCC000-memory.dmp