Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25-01-2024 17:38

General

  • Target

    2024-01-25_d8bfcf526204c125175c6464a95a85fc_cryptolocker.exe

  • Size

    82KB

  • MD5

    d8bfcf526204c125175c6464a95a85fc

  • SHA1

    bbacfed023311f2946b02aa1bd18be4a0e4cbbd0

  • SHA256

    080dcc93111a9aae10255f9d459556f588c631758196e9d8fc3580d7da9d02a8

  • SHA512

    b977bf9f90febca34a5662e84c0ee8df9168196ce2051ab7df26243dccc303b1bc137e6937631eeeeef9548dcb5e04dfaf0dfe865e91df1a37cc6178d07af4e4

  • SSDEEP

    768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPFHn:V6QFElP6n+gMQMOtEvwDpjyaLccVNlr

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-25_d8bfcf526204c125175c6464a95a85fc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-25_d8bfcf526204c125175c6464a95a85fc_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\asih.exe

    Filesize

    82KB

    MD5

    a8c23f4349e6eada928b74d22e3c1730

    SHA1

    948e5eec3a35e27bcf98ebf5b1bf40bebfdb98ef

    SHA256

    d488443db82fe8f77bc17129e34d12e861d788d75de02f817ad9cf656e3cbf11

    SHA512

    469eee290591456a37f6d7ab768961326da960f1834b7dfd2e8d8463756248dd331fabdf543af4553b391cc36c4a65e428392c19cd16ebd5d407ea645bc3c571

  • memory/2248-15-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2248-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2420-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2420-1-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2420-7-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB