Overview

overview

10

Static

static

10

4846b5ef2a...2a.exe

windows10-2004-x64

10

4846b5ef2a...2a.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • 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
    12/07/2026, 13:34

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General

  • Target
    4846b5ef2a5a1eea2b54ed3c5dced19befd4dd63381a0271e7b4225046b2aa2a.exe
  • Size 45KB
  • Sample260712-qvlf2scy41
  • SHA256 4846b5ef2a5a1eea2b54ed3c5dced19befd4dd63381a0271e7b4225046b2aa2a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • mephimsexhay.com:80

  • mephimsexhay.com:22

  • mephimsexhay.com:8080

  • mephimsexhay.com:8880

  • mephimsexhay.com:2052

  • mephimsexhay.com:2082

  • mephimsexhay.com:2086

  • mephimsexhay.com:2095

  • mephimsexhay.com:443

  • mephimsexhay.com:2053

  • mephimsexhay.com:2083

  • mephimsexhay.com:2087

  • mephimsexhay.com:2096

  • mephimsexhay.com:8443

  • www.mephimsexhay.com:80

  • www.mephimsexhay.com:22

  • www.mephimsexhay.com:8080

  • www.mephimsexhay.com:8880

  • www.mephimsexhay.com:2052

  • www.mephimsexhay.com:2082

Mutex

  • MtVnMBTWS8Cm

Attributes
  • delay

    0

  • install

    true

  • install_file

    f4zfy5m2.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
  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\4846b5ef2a5a1eea2b54ed3c5dced19befd4dd63381a0271e7b4225046b2aa2a.exe
    "C:\Users\Admin\AppData\Local\Temp\4846b5ef2a5a1eea2b54ed3c5dced19befd4dd63381a0271e7b4225046b2aa2a.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4776
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "f4zfy5m2" /tr '"C:\Users\Admin\AppData\Roaming\f4zfy5m2.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5956
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "f4zfy5m2" /tr '"C:\Users\Admin\AppData\Roaming\f4zfy5m2.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3084
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp17C4.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5132
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3372
      • C:\Users\Admin\AppData\Roaming\f4zfy5m2.exe
        "C:\Users\Admin\AppData\Roaming\f4zfy5m2.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1920
  • C:\Users\Admin\AppData\Roaming\f4zfy5m2.exe
    "C:\Users\Admin\AppData\Roaming\f4zfy5m2.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1176

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp17C4.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp17C4.tmp.bat
        • Size 152B
        • SHA256 1404c0a5d3b7d2b38740aed9e5cc5c957f3ced44c1dda7f8cb704f5aaa71bb5c
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        f4zfy5m2.exe
        • Path C:\Users\Admin\AppData\Roaming\f4zfy5m2.exe
        • Size 45KB
        • SHA256 4846b5ef2a5a1eea2b54ed3c5dced19befd4dd63381a0271e7b4225046b2aa2a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1176-12-0x0000000074D60000-0x000000007551C000-memory.dmp
        Download

        memory/1176-14-0x0000000074D60000-0x000000007551C000-memory.dmp
        Download

        memory/4776-0-0x0000000074EE2000-0x0000000074EE3000-memory.dmp
        Download

        memory/4776-1-0x0000000000DD0000-0x0000000000DE2000-memory.dmp
        Download

        memory/4776-2-0x0000000074ED0000-0x000000007568C000-memory.dmp
        Download

        memory/4776-3-0x00000000058E0000-0x000000000597C000-memory.dmp
        Download

        memory/4776-8-0x0000000074ED0000-0x000000007568C000-memory.dmp
        Download