Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/07/2026, 11:35

General

  • Target
    eb664953bfa51d4e4436ed9616f5ec08a7ca7da65307554d836a540bd756ebc3.exe
  • Size 45KB
  • Sample260715-np187sa17q
  • SHA256 eb664953bfa51d4e4436ed9616f5ec08a7ca7da65307554d836a540bd756ebc3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • phimsexlondep.net:80

  • phimsexlondep.net:22

  • phimsexlondep.net:8080

  • phimsexlondep.net:8880

  • phimsexlondep.net:2052

  • phimsexlondep.net:2082

  • phimsexlondep.net:2086

  • phimsexlondep.net:2095

  • phimsexlondep.net:443

  • phimsexlondep.net:2053

  • phimsexlondep.net:2083

  • phimsexlondep.net:2087

  • phimsexlondep.net:2096

  • phimsexlondep.net:8443

  • www.phimsexlondep.net:80

  • www.phimsexlondep.net:22

  • www.phimsexlondep.net:8080

  • www.phimsexlondep.net:8880

  • www.phimsexlondep.net:2052

  • www.phimsexlondep.net:2082

Mutex
  • 1lCsPta83lDd

Attributes
  • delay

    0

  • install

    true

  • install_file

    4rj9us.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).

  • 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 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb664953bfa51d4e4436ed9616f5ec08a7ca7da65307554d836a540bd756ebc3.exe
    "C:\Users\Admin\AppData\Local\Temp\eb664953bfa51d4e4436ed9616f5ec08a7ca7da65307554d836a540bd756ebc3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "4rj9us" /tr '"C:\Users\Admin\AppData\Roaming\4rj9us.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4332
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "4rj9us" /tr '"C:\Users\Admin\AppData\Roaming\4rj9us.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3348
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDF8D.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3484
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3088
      • C:\Users\Admin\AppData\Roaming\4rj9us.exe
        "C:\Users\Admin\AppData\Roaming\4rj9us.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4852
  • C:\Users\Admin\AppData\Roaming\4rj9us.exe
    "C:\Users\Admin\AppData\Roaming\4rj9us.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5016

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpDF8D.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpDF8D.tmp.bat
        • Size 150B
        • SHA256 ced6dfbb6cf715eb13bca0f67418ace14d8db358ace15e5aaa9206357fd4ca68
        • MD5 SHA1 SHA512 TLSH

        4rj9us.exe

        • Path C:\Users\Admin\AppData\Roaming\4rj9us.exe
        • Size 45KB
        • SHA256 eb664953bfa51d4e4436ed9616f5ec08a7ca7da65307554d836a540bd756ebc3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5012-0-0x0000000074B22000-0x0000000074B23000-memory.dmp

        memory/5012-1-0x0000000000C10000-0x0000000000C22000-memory.dmp

        memory/5012-2-0x0000000074B10000-0x00000000752CC000-memory.dmp

        memory/5012-3-0x00000000057C0000-0x000000000585C000-memory.dmp

        memory/5012-8-0x0000000074B10000-0x00000000752CC000-memory.dmp

        memory/5016-12-0x0000000074910000-0x00000000750CC000-memory.dmp

        memory/5016-14-0x0000000074910000-0x00000000750CC000-memory.dmp