Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 16:50

General

  • Target
    1a4ba56a5ada6d0dbc2173405f728711bc1356a2f32ea6716b74a5b7ee35cdec.exe
  • Size 45KB
  • Sample260707-vccteaas2w
  • SHA256 1a4ba56a5ada6d0dbc2173405f728711bc1356a2f32ea6716b74a5b7ee35cdec
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexviet74.com:80

  • sexviet74.com:22

  • sexviet74.com:8080

  • sexviet74.com:8880

  • sexviet74.com:2052

  • sexviet74.com:2082

  • sexviet74.com:2086

  • sexviet74.com:2095

  • sexviet74.com:443

  • sexviet74.com:2053

  • sexviet74.com:2083

  • sexviet74.com:2087

  • sexviet74.com:2096

  • sexviet74.com:8443

  • www.sexviet74.com:80

  • www.sexviet74.com:22

  • www.sexviet74.com:8080

  • www.sexviet74.com:8880

  • www.sexviet74.com:2052

  • www.sexviet74.com:2082

Mutex
  • viLfCShyvGLN

Attributes
  • delay

    0

  • install

    true

  • install_file

    hrvbc0b.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
  • 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.

  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a4ba56a5ada6d0dbc2173405f728711bc1356a2f32ea6716b74a5b7ee35cdec.exe
    "C:\Users\Admin\AppData\Local\Temp\1a4ba56a5ada6d0dbc2173405f728711bc1356a2f32ea6716b74a5b7ee35cdec.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1504
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hrvbc0b" /tr '"C:\Users\Admin\AppData\Roaming\hrvbc0b.exe"' & exit
      2⤵
        PID:3844
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "hrvbc0b" /tr '"C:\Users\Admin\AppData\Roaming\hrvbc0b.exe"'
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4792
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp57FA.tmp.bat""
        2⤵
          PID:5988
          • C:\Windows\SysWOW64\timeout.exe
            timeout 3
            3⤵
            • Delays execution with timeout.exe
            PID:924
          • C:\Users\Admin\AppData\Roaming\hrvbc0b.exe
            "C:\Users\Admin\AppData\Roaming\hrvbc0b.exe"
            3⤵
              PID:3876
        • C:\Users\Admin\AppData\Roaming\hrvbc0b.exe
          "C:\Users\Admin\AppData\Roaming\hrvbc0b.exe"
          1⤵
            PID:5284

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                tmp57FA.tmp.bat

                • Path C:\Users\Admin\AppData\Local\Temp\tmp57FA.tmp.bat
                • Size 151B
                • SHA256 97300a5b33260e32561c0ad5af0e81942d9e017a315d4c6441dc6b95202cc0e3
                • MD5 SHA1 SHA512 TLSH

                hrvbc0b.exe

                • Path C:\Users\Admin\AppData\Roaming\hrvbc0b.exe
                • Size 45KB
                • SHA256 1a4ba56a5ada6d0dbc2173405f728711bc1356a2f32ea6716b74a5b7ee35cdec
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/1504-0-0x0000000074DA2000-0x0000000074DA3000-memory.dmp

                memory/1504-1-0x0000000000D30000-0x0000000000D42000-memory.dmp

                memory/1504-2-0x0000000074D90000-0x000000007554C000-memory.dmp

                memory/1504-3-0x0000000005880000-0x000000000591C000-memory.dmp

                memory/1504-9-0x0000000074D90000-0x000000007554C000-memory.dmp

                memory/5284-12-0x0000000074D90000-0x000000007554C000-memory.dmp

                memory/5284-14-0x0000000074D90000-0x000000007554C000-memory.dmp