Overview

overview

10

Static

static

10

vitalcore.exe

windows10-2004-x64

10

vitalcore.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    19/05/2026, 14:36

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General

  • Target
    vitalcore.exe
  • Size 64KB
  • Sample260519-rylrnae18t
  • SHA256 3fbc05002056c0d6a1e49a2a7b0aa2697bf12b6448fa917e2e0f688fdd17e5b2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
vitaldefense_evasionexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Botnet

  • vital

C2

  • 88-xx.in.net:2048

  • 88-xx.in.net:443

  • 88-xx.in.net:4782

  • 88-xx.in.net:8888

  • mcprfz.ru.com:2048

  • mcprfz.ru.com:443

  • mcprfz.ru.com:4782

  • mcprfz.ru.com:8888

Mutex

  • vitalcore_mutex

Attributes
  • delay

    1

  • install

    true

  • install_file

    vitalcore.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).

  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\vitalcore.exe
    "C:\Users\Admin\AppData\Local\Temp\vitalcore.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5076
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "vitalcore" /tr '"C:\Users\Admin\AppData\Roaming\vitalcore.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:576
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "vitalcore" /tr '"C:\Users\Admin\AppData\Roaming\vitalcore.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4596
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4467.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3268
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4312
      • C:\Users\Admin\AppData\Roaming\vitalcore.exe
        "C:\Users\Admin\AppData\Roaming\vitalcore.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4592
  • C:\Users\Admin\AppData\Roaming\vitalcore.exe
    "C:\Users\Admin\AppData\Roaming\vitalcore.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2088

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        vitalcore.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\vitalcore.exe.log
        • Size 859B
        • SHA256 a6f7d3892a001df1aafe2eaf221a3b09a4fdad23ad642a62b9cc50fd25f9415f
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        tmp4467.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp4467.tmp.bat
        • Size 153B
        • SHA256 0b26de00fda71af9380d07b2c97361d50cb50329207880d4338c9e7d3dd352f8
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        vitalcore.exe
        • Path C:\Users\Admin\AppData\Roaming\vitalcore.exe
        • Size 64KB
        • SHA256 3fbc05002056c0d6a1e49a2a7b0aa2697bf12b6448fa917e2e0f688fdd17e5b2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/5076-0-0x000001FCD7A70000-0x000001FCD7A86000-memory.dmp
        Download

        memory/5076-1-0x000001FCF2080000-0x000001FCF2090000-memory.dmp
        Download