Analysis

  • max time kernel
    135s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-05-2024 01:13

General

  • Target

    4f9ae5b89c89e5c79c53db694d4d67e2d9b3c47c7389c8c3899dedbc9e92be76.exe

  • Size

    91KB

  • MD5

    9211293fdf6164567c9c0557cf200057

  • SHA1

    cef794bc498b0b4ffea444c8f0bd002f0ad717bc

  • SHA256

    4f9ae5b89c89e5c79c53db694d4d67e2d9b3c47c7389c8c3899dedbc9e92be76

  • SHA512

    bc858a5bf2f61a84718c204b1b3cef8883e91d88f5ca3f974b9531f433e44b62d2d7474a8f5f65213703146603ff531a5441a2640c7c63bf0e3b05de0671a609

  • SSDEEP

    1536:nMZI65tohmg4x4mRpkKzk9c/8a95TmjsqeEPQk4SfV:nMuHdOpkKzuc/8afmjsqeEPQk4S9

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

OS

C2

20.117.108.240:7825

Mutex

IOr8QBoiV215

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Detects file containing reversed ASEP Autorun registry keys 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f9ae5b89c89e5c79c53db694d4d67e2d9b3c47c7389c8c3899dedbc9e92be76.exe
    "C:\Users\Admin\AppData\Local\Temp\4f9ae5b89c89e5c79c53db694d4d67e2d9b3c47c7389c8c3899dedbc9e92be76.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4196
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      #system32
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1556
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4028,i,13281073920029625837,8253721632651544158,262144 --variations-seed-version --mojo-platform-channel-handle=4492 /prefetch:8
    1⤵
      PID:4252

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1556-2-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/1556-5-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/1556-6-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/1556-9-0x0000000005CF0000-0x0000000005D8C000-memory.dmp

      Filesize

      624KB

    • memory/1556-10-0x0000000006340000-0x00000000068E4000-memory.dmp

      Filesize

      5.6MB

    • memory/1556-11-0x0000000005E00000-0x0000000005E66000-memory.dmp

      Filesize

      408KB

    • memory/1556-13-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/1556-14-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/4196-0-0x000000007507E000-0x000000007507F000-memory.dmp

      Filesize

      4KB

    • memory/4196-1-0x0000000000620000-0x000000000063C000-memory.dmp

      Filesize

      112KB

    • memory/4196-4-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB

    • memory/4196-12-0x0000000075070000-0x0000000075820000-memory.dmp

      Filesize

      7.7MB