Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/03/2024, 23:22

General

  • Target

    7fb9c14b8723a838de6d3d9c3dfac2c69f4c78cfeb5c1c4d0aaaeb476a6ed374.exe

  • Size

    204KB

  • MD5

    ebe4ff7f51a8047864eb26e0ea83f65f

  • SHA1

    0d54af8cde9a68e17c17a729605187a9c618fa3d

  • SHA256

    7fb9c14b8723a838de6d3d9c3dfac2c69f4c78cfeb5c1c4d0aaaeb476a6ed374

  • SHA512

    b30357fc8d2d99982e16fb163f9eeec3294290305e278dbb5bf74393806bc3b98c43ee33264229d3027077f8a71b60f06d73d68083af11787b5f9a0d2e792151

  • SSDEEP

    1536:JH+OogHo1vzxHwxhjoxNy3tQ9CW5EZWHakMwP9W6uXNh9h1AWa11GBPIdRONd+wl:ZHo1m00tQ9nLHbB9WTk9+JgqmltqV

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fb9c14b8723a838de6d3d9c3dfac2c69f4c78cfeb5c1c4d0aaaeb476a6ed374.exe
    "C:\Users\Admin\AppData\Local\Temp\7fb9c14b8723a838de6d3d9c3dfac2c69f4c78cfeb5c1c4d0aaaeb476a6ed374.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3504
    • C:\Users\Admin\koobo.exe
      "C:\Users\Admin\koobo.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3260
  • 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=1332 --field-trial-handle=2268,i,8796662530135712346,11409037572378858775,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2256

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\koobo.exe

      Filesize

      204KB

      MD5

      c776de713643aa95f191ccea0e7b88ad

      SHA1

      3c8397265c246e7a25849aca45c863ac5415f29c

      SHA256

      6b5992c354b982064376e4228170df4651fe9d63deabf53e1aea18c22fd4dfef

      SHA512

      f0e78f4a50ff353b1f30a6f80d922c59670efddc51752524455a1ff29715c8dfdfe7efee93c87c6a5f4dc52a45787f5b4d456bcff1251ac82eb7b2ed25532c96