Overview

overview

10

Static

static

10

blodsa.exe

windows10-2004-x64

10

blodsa.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    30s
  • max time network
    24s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/08/2026, 09:25

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General

  • Target
    blodsa.exe
  • Size 48KB
  • Sample260809-ldvaeavcra
  • SHA256 d92dbd750d8616cb72801b5ca49d5da4325a8421e4707b831346a98c66a7efb6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • 789win01.cyou:6606

  • 789win01.cyou:80

  • 789win01.cyou:8080

  • 789win01.cyou:443

  • 789win01.cyou:8443

  • 789win01.cyou:22

  • 789win01.cyou:23

  • nk88.royalgroupofcompanies.in/vn/:6606

  • nk88.royalgroupofcompanies.in/vn/:80

  • nk88.royalgroupofcompanies.in/vn/:8080

  • nk88.royalgroupofcompanies.in/vn/:443

  • nk88.royalgroupofcompanies.in/vn/:8443

  • nk88.royalgroupofcompanies.in/vn/:22

  • nk88.royalgroupofcompanies.in/vn/:23

  • royalgroupofcompanies.in/vn/:6606

  • royalgroupofcompanies.in/vn/:80

  • royalgroupofcompanies.in/vn/:8080

  • royalgroupofcompanies.in/vn/:443

  • royalgroupofcompanies.in/vn/:8443

  • royalgroupofcompanies.in/vn/:22

Mutex

  • QY1NvNVuFCbG

Attributes
  • delay

    3

  • install

    true

  • install_file

    GoogleUpdate.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 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.

    execution
  • System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\blodsa.exe
    "C:\Users\Admin\AppData\Local\Temp\blodsa.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:4348
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "GoogleUpdate" /tr '"C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      PID:4204
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "GoogleUpdate" /tr '"C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5036
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp98B.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      PID:5204
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4364
      • C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe
        "C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe"
        3⤵
          PID:2368
    • C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe
      "C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe"
      1⤵
        PID:1108

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            tmp98B.tmp.bat
            • Path C:\Users\Admin\AppData\Local\Temp\tmp98B.tmp.bat
            • Size 155B
            • SHA256 a16eac08aa89395bed20ada64b74f27531ad77f7f1fe91023bdf1f2947d9aebb
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            GoogleUpdate.exe
            • Path C:\Users\Admin\AppData\Roaming\GoogleUpdate.exe
            • Size 48KB
            • SHA256 d92dbd750d8616cb72801b5ca49d5da4325a8421e4707b831346a98c66a7efb6
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/1108-13-0x00000000751D0000-0x000000007598C000-memory.dmp
            Download

            memory/1108-15-0x00000000751D0000-0x000000007598C000-memory.dmp
            Download

            memory/4348-0-0x00000000751E2000-0x00000000751E3000-memory.dmp
            Download

            memory/4348-1-0x0000000000D90000-0x0000000000DA2000-memory.dmp
            Download

            memory/4348-2-0x00000000751D0000-0x000000007598C000-memory.dmp
            Download

            memory/4348-3-0x00000000058A0000-0x0000000005906000-memory.dmp
            Download

            memory/4348-4-0x0000000005CF0000-0x0000000005D8C000-memory.dmp
            Download

            memory/4348-10-0x00000000751D0000-0x000000007598C000-memory.dmp
            Download