Analysis

  • max time kernel
    137s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-07-2024 01:47

General

  • Target

    94c9d9b131a09d2da14127370bc041f46464754f907d38467c5c48ad20624add.exe

  • Size

    3.1MB

  • MD5

    e939fb9abcac14771583ac57e05d9b90

  • SHA1

    b09d0bc30a3d3cffb3583f796c4f363e635ed90a

  • SHA256

    94c9d9b131a09d2da14127370bc041f46464754f907d38467c5c48ad20624add

  • SHA512

    347134900144999b008e9650057144457b82d260569ab9276482d4be814c6efe542adf5fc276d5d344b0561118cc9a5ab61a718b5a972b29784b467edc7fd767

  • SSDEEP

    12288:a7hTrBnuvYkNa2VNYKbpeFy1eLq/FQW8uok7GCoShNZ5LG:a3UYkswNYgpwee+/F78u5yCoS9k

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

betterdays4me.duckdns.org:6606

betterdays4me.duckdns.org:7707

betterdays4me.duckdns.org:8808

Mutex

fULNLY9PC39i

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#.

  • 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\94c9d9b131a09d2da14127370bc041f46464754f907d38467c5c48ad20624add.exe
    "C:\Users\Admin\AppData\Local\Temp\94c9d9b131a09d2da14127370bc041f46464754f907d38467c5c48ad20624add.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
        PID:2692
    • 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=4080,i,15140928051103392835,1612840580898364401,262144 --variations-seed-version --mojo-platform-channel-handle=4376 /prefetch:8
      1⤵
        PID:3404

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2532-1-0x0000015216CF0000-0x0000015216D16000-memory.dmp
        Filesize

        152KB

      • memory/2532-0-0x00007FFCAD6B3000-0x00007FFCAD6B5000-memory.dmp
        Filesize

        8KB

      • memory/2532-2-0x0000015231220000-0x0000015231246000-memory.dmp
        Filesize

        152KB

      • memory/2532-3-0x00000152170D0000-0x0000015217134000-memory.dmp
        Filesize

        400KB

      • memory/2532-4-0x00007FFCAD6B0000-0x00007FFCAE171000-memory.dmp
        Filesize

        10.8MB

      • memory/2532-7-0x00007FFCAD6B0000-0x00007FFCAE171000-memory.dmp
        Filesize

        10.8MB

      • memory/2692-5-0x0000000000400000-0x0000000000412000-memory.dmp
        Filesize

        72KB

      • memory/2692-6-0x00000000743CE000-0x00000000743CF000-memory.dmp
        Filesize

        4KB

      • memory/2692-8-0x00000000743C0000-0x0000000074B70000-memory.dmp
        Filesize

        7.7MB

      • memory/2692-9-0x00000000743CE000-0x00000000743CF000-memory.dmp
        Filesize

        4KB

      • memory/2692-10-0x00000000743C0000-0x0000000074B70000-memory.dmp
        Filesize

        7.7MB