Resubmissions

19-06-2024 09:06

240619-k2rczssbpk 3

19-06-2024 09:04

240619-k1q1tsxfke 3

Analysis

  • max time kernel
    79s
  • max time network
    80s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19-06-2024 09:06

General

  • Target

    cch_blum_re.pyc

  • Size

    7KB

  • MD5

    b3b9b54ddc84df18135852ee3ede2383

  • SHA1

    6841a45353951cbbb8a9bb7a8489a1ab43ce4669

  • SHA256

    b8e5ae90d66993923b851d0aeb26c0031b56f46a7151d71a0fee2b77bd9bf691

  • SHA512

    86db3c0eba1533bbe3ca62c324106e199756c09aa5477ab90c0711c28cc01fade9f87f89ebba78117102775194b0a197f95f93c95a8e5ec7c3a0295d494dee68

  • SSDEEP

    192:8w5Cpjqg1Bo123UpK/PIFwH7GSPFy0xg60GeA:sWmK23UpK/P/bG8aA

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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 17 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\cch_blum_re.pyc
    1⤵
    • Modifies registry class
    PID:4284
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:992
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\cch_blum_re.pyc
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads