Analysis

  • max time kernel
    6s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 14:16

General

  • Target
    4592b6eb6a4d379f921dc6f06d3628d71e25e3183ddaf97e0546a56bb88d6cb7.exe
  • Size 45KB
  • Sample260710-rlcm8ads5v
  • SHA256 4592b6eb6a4d379f921dc6f06d3628d71e25e3183ddaf97e0546a56bb88d6cb7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • phimsexvn.work:80

  • phimsexvn.work:22

  • phimsexvn.work:8080

  • phimsexvn.work:8880

  • phimsexvn.work:2052

  • phimsexvn.work:2082

  • phimsexvn.work:2086

  • phimsexvn.work:2095

  • phimsexvn.work:443

  • phimsexvn.work:2053

  • phimsexvn.work:2083

  • phimsexvn.work:2087

  • phimsexvn.work:2096

  • phimsexvn.work:8443

  • www.phimsexvn.work:80

  • www.phimsexvn.work:22

  • www.phimsexvn.work:8080

  • www.phimsexvn.work:8880

  • www.phimsexvn.work:2052

  • www.phimsexvn.work:2082

Mutex
  • EBzM1B5n1Wcq

Attributes
  • delay

    0

  • install

    true

  • install_file

    9tpfr92v.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\4592b6eb6a4d379f921dc6f06d3628d71e25e3183ddaf97e0546a56bb88d6cb7.exe
    "C:\Users\Admin\AppData\Local\Temp\4592b6eb6a4d379f921dc6f06d3628d71e25e3183ddaf97e0546a56bb88d6cb7.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4132
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "9tpfr92v" /tr '"C:\Users\Admin\AppData\Roaming\9tpfr92v.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1812
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "9tpfr92v" /tr '"C:\Users\Admin\AppData\Roaming\9tpfr92v.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4292
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEBE2.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3076
      • C:\Users\Admin\AppData\Roaming\9tpfr92v.exe
        "C:\Users\Admin\AppData\Roaming\9tpfr92v.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2128
  • C:\Users\Admin\AppData\Roaming\9tpfr92v.exe
    "C:\Users\Admin\AppData\Roaming\9tpfr92v.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5076

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpEBE2.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpEBE2.tmp.bat
        • Size 152B
        • SHA256 d9caa89af289089d2723fd6d27586f2a13b503f4a24374cd12af3d3c1ea55366
        • MD5 SHA1 SHA512 TLSH

        9tpfr92v.exe

        • Path C:\Users\Admin\AppData\Roaming\9tpfr92v.exe
        • Size 45KB
        • SHA256 4592b6eb6a4d379f921dc6f06d3628d71e25e3183ddaf97e0546a56bb88d6cb7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4132-0-0x0000000074AD2000-0x0000000074AD3000-memory.dmp

        memory/4132-1-0x0000000000490000-0x00000000004A2000-memory.dmp

        memory/4132-2-0x0000000074AC0000-0x000000007527C000-memory.dmp

        memory/4132-3-0x0000000004FC0000-0x000000000505C000-memory.dmp

        memory/4132-9-0x0000000074AC0000-0x000000007527C000-memory.dmp

        memory/5076-12-0x0000000074AB0000-0x000000007526C000-memory.dmp

        memory/5076-14-0x0000000074AB0000-0x000000007526C000-memory.dmp