Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    02/04/2024, 11:27

General

  • Target

    447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe

  • Size

    63KB

  • MD5

    c1ade258f05c512e98ebc4d9d1165f8a

  • SHA1

    acf20f6a7dc7841ae06f801b887289fdc99e0488

  • SHA256

    447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

  • SHA512

    5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

  • SSDEEP

    1536:SaKFoNbEkySYKumUYFOy5biAPY0JG4aRjnl7RUr+TG5x:SawoNbEkAKumUYFD5biF0JejxSsCx

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Exodus_Market

C2

leetboy.dynuddns.net:1339

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    svchos.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
    "C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2592
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2036
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp23E5.tmp.bat""
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2484
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2088
      • C:\Users\Admin\AppData\Roaming\svchos.exe
        "C:\Users\Admin\AppData\Roaming\svchos.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp23E5.tmp.bat

    Filesize

    150B

    MD5

    4c60902816ee99bfeffd142e19715994

    SHA1

    816fe83948134a64621803ba89c7a1ce56d0bc48

    SHA256

    16dc73674accf1b56eb4d7c96a7c077b19de1abb2e1b6ee9a07a64dd5ceff415

    SHA512

    c337e52292042c7d847e38c0bc0da6bab67e51c177833b5a41db668f7f9a74d2e717247c7b2a7aaa60c0e45ed034df133b5e63aa7db7b121da773af5b0bc9142

  • C:\Users\Admin\AppData\Roaming\svchos.exe

    Filesize

    63KB

    MD5

    c1ade258f05c512e98ebc4d9d1165f8a

    SHA1

    acf20f6a7dc7841ae06f801b887289fdc99e0488

    SHA256

    447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

    SHA512

    5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

  • memory/2616-16-0x00000000001A0000-0x00000000001B6000-memory.dmp

    Filesize

    88KB

  • memory/2616-17-0x0000000073EE0000-0x00000000745CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2616-18-0x0000000004B00000-0x0000000004B40000-memory.dmp

    Filesize

    256KB

  • memory/2616-19-0x0000000073EE0000-0x00000000745CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2616-20-0x0000000004B00000-0x0000000004B40000-memory.dmp

    Filesize

    256KB

  • memory/2860-0-0x0000000000AF0000-0x0000000000B06000-memory.dmp

    Filesize

    88KB

  • memory/2860-1-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB

  • memory/2860-2-0x0000000004700000-0x0000000004740000-memory.dmp

    Filesize

    256KB

  • memory/2860-12-0x0000000073F30000-0x000000007461E000-memory.dmp

    Filesize

    6.9MB