Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13/03/2024, 01:49

General

  • Target

    2024-03-13_a5932b9d0b7213a43c0694c187714b77_cryptolocker.exe

  • Size

    69KB

  • MD5

    a5932b9d0b7213a43c0694c187714b77

  • SHA1

    c0989d243c23363385b5582c24658961f7e2a419

  • SHA256

    5c0e3e7cdb4158c01c4296739004a7120d9f5efc1c7b0c1c26666f44c6dbdbae

  • SHA512

    6ae3378830c0919a0642205973d42fb0cfc125f48dc6b523e9b0544a301b3b491fa2a65628a9542e1759074ff6f1d581bbd5d7e4cc3d2f52d53626e0af683a54

  • SSDEEP

    1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUsMx:DW60sllyWOtEvwDpjwF85n

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 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\2024-03-13_a5932b9d0b7213a43c0694c187714b77_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-13_a5932b9d0b7213a43c0694c187714b77_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    69KB

    MD5

    c5a0dbf3666257e1390a6a4ab17d592e

    SHA1

    6a7387416dc3adac4711c5bcbeabc3ae421d6b43

    SHA256

    39da94a51ce6cee81e9810250ff9550a382761934234300e394eb8e032b47076

    SHA512

    d4149b5e24b04ae33f4e2ddb7f488976db8935481058057e79053dc203bc9440033dfe1ada3e77eb7d67cf51f3ae5b93c99dae87f789e79311a972b1e6b8f2cb

  • memory/2100-16-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2100-18-0x0000000000200000-0x0000000000206000-memory.dmp

    Filesize

    24KB

  • memory/2100-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2208-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2208-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2208-3-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/2208-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2208-14-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB