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Analysis

  • max time kernel
    135s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 01:44

General

  • Target

    2024-05-26_bc8af94da54bd2186b8191dcae5e3cfe_avoslocker_revil.exe

  • Size

    6.5MB

  • MD5

    bc8af94da54bd2186b8191dcae5e3cfe

  • SHA1

    89587077e0439431a59d21f817a809194d8d9899

  • SHA256

    adbc7b6e43968e643fc9abb2495b3f02d5fc23d551ade588a09de368b2450858

  • SHA512

    fb7635f7fd70357b1ff4e60a27237b0694bd018cfb6395e48d5aee37c623b7acf8f770b53852d4296bfb9bdacd7202d44ae59bb07bc1b14b055bfebc57f06076

  • SSDEEP

    98304:6I9tiSH6a6gfFCZ8th/yp3qvZ4ypOKRxoBBTxBQk6dtQ4:6AH6aff4+4p84yjRyBNxqQ4

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-26_bc8af94da54bd2186b8191dcae5e3cfe_avoslocker_revil.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-26_bc8af94da54bd2186b8191dcae5e3cfe_avoslocker_revil.exe"
    1⤵
    • Drops file in Drivers directory
    • Drops desktop.ini file(s)
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:4396
    • C:\Users\Admin\AppData\Local\Temp\c25b218ab7c745fe9efa05d20799a8ea.exe
      "C:\Users\Admin\AppData\Local\Temp\c25b218ab7c745fe9efa05d20799a8ea.exe" --01
      2⤵
      • Executes dropped EXE
      PID:4036
  • 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=4432,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=4180 /prefetch:8
    1⤵
      PID:1764

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\c25b218ab7c745fe9efa05d20799a8ea.exe

      Filesize

      6.0MB

      MD5

      02e6bf47f5315e8da515ccae63f58a6e

      SHA1

      3469eec2964080610b188eceabc216a5f0244d2b

      SHA256

      aad9c5c01c5c87d33da0695c53eb0bdae432d41452a2f54ddc1f23eb14928517

      SHA512

      949bf7ff8eaa37a0c036af580f6bde633aec5336312f1c96d879aaf2398ee05f82a9d84ce002937b95382bedf2e7143e894b8d0feec478d074a1a3e1baf1d031

    • memory/4396-6-0x000000001D610000-0x000000001D63E000-memory.dmp

      Filesize

      184KB

    • memory/4396-1-0x00007FFDA2FD0000-0x00007FFDA3971000-memory.dmp

      Filesize

      9.6MB

    • memory/4396-3-0x000000001C3C0000-0x000000001C45C000-memory.dmp

      Filesize

      624KB

    • memory/4396-4-0x00007FFDA2FD0000-0x00007FFDA3971000-memory.dmp

      Filesize

      9.6MB

    • memory/4396-5-0x000000001B930000-0x000000001B938000-memory.dmp

      Filesize

      32KB

    • memory/4396-0-0x00007FFDA3285000-0x00007FFDA3286000-memory.dmp

      Filesize

      4KB

    • memory/4396-9-0x000000001C610000-0x000000001C61A000-memory.dmp

      Filesize

      40KB

    • memory/4396-2-0x000000001BE50000-0x000000001C31E000-memory.dmp

      Filesize

      4.8MB

    • memory/4396-13-0x00007FFDA2FD0000-0x00007FFDA3971000-memory.dmp

      Filesize

      9.6MB

    • memory/4396-16-0x00000000015D0000-0x00000000015E0000-memory.dmp

      Filesize

      64KB

    • memory/4396-17-0x000000001E240000-0x000000001E260000-memory.dmp

      Filesize

      128KB

    • memory/4396-18-0x000000001E2B0000-0x000000001E2C8000-memory.dmp

      Filesize

      96KB

    • memory/4396-20-0x00007FFDA2FD0000-0x00007FFDA3971000-memory.dmp

      Filesize

      9.6MB