Analysis

  • max time kernel
    49s
  • max time network
    41s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-04-2024 23:26

General

  • Target

    release.rar

  • Size

    7.9MB

  • MD5

    055bfe6e7bbf803236c3b1552f2ca0b1

  • SHA1

    21559b4a5b1ab33dc5d91e5f3422d5d88dd70e93

  • SHA256

    baa06057a238e7417c4a544875c85b8d4d408a2c4585631206530cd2360a713e

  • SHA512

    410865555981d4da4eb11ab8fc37891ad01503c9bf86f30b0255460d6ed9cd3fdffa34bf4953f915254c81a6c8ed139ad389197fcd078eacdddfe92a3c5549a2

  • SSDEEP

    196608:juqMF1FTRFBVltwEi790gw4RsYPdgoR2twuANg9QAFb:iqmLLBm8gw98BQwujP

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious use of SetWindowsHookEx 23 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\release.rar
    1⤵
    • Modifies registry class
    PID:4848
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\release.rar
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:4852
  • 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=756 --field-trial-handle=2244,i,11986678581565715302,451159359636456336,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4392

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads