Analysis

  • max time kernel
    144s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-04-2024 12:59

General

  • Target

    Attachments.lnk

  • Size

    1KB

  • MD5

    cac3161c21fc24e8530ad189835f7d68

  • SHA1

    f58e9d6ade2e933bb379ce5fb44e0fa4c598ba63

  • SHA256

    96a0a7ee73984d9a2ed785ff822d090549769c16feed09d31322d9a36f53f856

  • SHA512

    f961379e0d9085911f0dcee94521ded6aab34babb9ab824db221256d3f73bcbcab7795ddf26f5d11c80a7e15948c68241fab2e83ad2e678088045d65528e9a41

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\Attachments.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4628
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" Attachments.dat,ProcessLoad
      2⤵
      • Blocklisted process makes network request
      PID:3928
  • 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 --mojo-platform-channel-handle=3272 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3580

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3928-0-0x00007FFEB2B60000-0x00007FFEB2B70000-memory.dmp

      Filesize

      64KB