Analysis

  • max time kernel
    153s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2024 09:44

General

  • Target

    RVF001.exe

  • Size

    300.0MB

  • MD5

    fdd6bb2ce995b36d49d3196894192988

  • SHA1

    9e8b9db35c796ccd6622771ffc5d333038d3333d

  • SHA256

    a09c85265ae57ce325328a06925d3fbc61021f2ca815d00858c3024ab6f8e3a8

  • SHA512

    e337f94b47930a8e01ef4877a45578c9e1bf430111a6c27de03f50cee599717e4c0605f01f41d70b2123ef3bf12fb695893965876cd90ac4a17746dc8b7389e2

  • SSDEEP

    3072:9q1IYuRXuhcSOY/hQ6d1XmRsDvHt02pWJJ67rmvHszvTBFUa:UyY6TYC6d1XjxpWJmryHszvTBFZ

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT 5.0.5

Botnet

Venom Clients

C2

ry8325585.duckdns.org:6087

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Executes dropped EXE 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RVF001.exe
    "C:\Users\Admin\AppData\Local\Temp\RVF001.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\regdsop.exe'" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2512
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\regdsop.exe'" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2876
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\RVF001.exe" "C:\Users\Admin\AppData\Roaming\regdsop.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2920
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2864
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {35E173A9-C271-4F72-A4ED-6371645AA018} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:608
    • C:\Users\Admin\AppData\Roaming\regdsop.exe
      C:\Users\Admin\AppData\Roaming\regdsop.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1740-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

    Filesize

    4KB

  • memory/1740-1-0x0000000000CD0000-0x0000000000D02000-memory.dmp

    Filesize

    200KB

  • memory/1740-2-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1740-3-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

    Filesize

    4KB

  • memory/1740-4-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1740-23-0x0000000074DC0000-0x00000000754AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2028-26-0x0000000000B40000-0x0000000000B72000-memory.dmp

    Filesize

    200KB

  • memory/2864-8-0x0000000000330000-0x0000000000346000-memory.dmp

    Filesize

    88KB

  • memory/2864-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2864-5-0x0000000000330000-0x0000000000346000-memory.dmp

    Filesize

    88KB

  • memory/2864-14-0x0000000000330000-0x0000000000346000-memory.dmp

    Filesize

    88KB

  • memory/2864-15-0x0000000000330000-0x0000000000346000-memory.dmp

    Filesize

    88KB

  • memory/2864-22-0x0000000000330000-0x0000000000346000-memory.dmp

    Filesize

    88KB

  • memory/2864-19-0x0000000000330000-0x0000000000346000-memory.dmp

    Filesize

    88KB

  • memory/2864-9-0x0000000000330000-0x0000000000346000-memory.dmp

    Filesize

    88KB

  • memory/2864-7-0x0000000000330000-0x0000000000346000-memory.dmp

    Filesize

    88KB