Overview

overview

10

Static

static

10

Infected.exe

windows7-x64

10

Infected.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2024 17:28

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General

  • Target

    Infected.exe

  • Size

    63KB

  • MD5

    fc8987493d7a0050a7f0dce55954227a

  • SHA1

    50cc5a17042c822c972807ca7a9d352f004ca4cc

  • SHA256

    8ee75b2fb3523e83d33ea990e485343cae5c8ad867e07a70b057c2e3031bcd30

  • SHA512

    b2193397765dfdfbbe315a81c332165f5a3937ac7bce78b8184e8bdf4436bfb7f91552611824d144e47fcfa6aef641ff9bff33bfc2ee12293b6fd3db248b7a1f

  • SSDEEP

    768:DD9LAFjT678p4C8A+XeuazcBRL5JTk1+T4KSBGHmDbD/ph0oXDMAtJlAxZSueWph:tqTQJdSJYUbdh9DMAblAaueWpqKmY7

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

Attributes
  • delay

    1

  • install

    true

  • install_file

    defender.exe

  • install_folder

    %Temp%

  • pastebin_config

    https://pastebin.com/raw/ga28KBPD

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
    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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 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\Infected.exe
    "C:\Users\Admin\AppData\Local\Temp\Infected.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "defender" /tr '"C:\Users\Admin\AppData\Local\Temp\defender.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3156
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "defender" /tr '"C:\Users\Admin\AppData\Local\Temp\defender.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1664
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC8ED.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:100
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1856
      • C:\Users\Admin\AppData\Local\Temp\defender.exe
        "C:\Users\Admin\AppData\Local\Temp\defender.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\defender.exe
    Filesize

    63KB

    MD5

    fc8987493d7a0050a7f0dce55954227a

    SHA1

    50cc5a17042c822c972807ca7a9d352f004ca4cc

    SHA256

    8ee75b2fb3523e83d33ea990e485343cae5c8ad867e07a70b057c2e3031bcd30

    SHA512

    b2193397765dfdfbbe315a81c332165f5a3937ac7bce78b8184e8bdf4436bfb7f91552611824d144e47fcfa6aef641ff9bff33bfc2ee12293b6fd3db248b7a1f

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\tmpC8ED.tmp.bat
    Filesize

    155B

    MD5

    de1f847b28f05b08ea8e3f247b8437cc

    SHA1

    20192f4653a0724ac7fbf8f90064ed5300f03f5b

    SHA256

    336f8594ed94983210038e2b8e3a65beebd0a016aeb6f490f338ba38ff391025

    SHA512

    f05c5964cc30790ae8894286c28fd9e8a1244a5d9a7f217b74fcafedc06febe8e29585036b11055c3f0c6ed95caea86d0d6bee06bb504ddcb8a73a265b96165b

    Download Submit

  • memory/5012-0-0x0000000000F90000-0x0000000000FA6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/5012-1-0x00007FF986D23000-0x00007FF986D25000-memory.dmp

    Filesize

    8KB

    Download

  • memory/5012-2-0x00007FF986D20000-0x00007FF9877E1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/5012-7-0x00007FF986D20000-0x00007FF9877E1000-memory.dmp

    Filesize

    10.8MB

    Download