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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27/04/2024, 05:20

General

  • Target

    2024-04-27_f2d8b12a72ca71c468c770dc70920ab0_cryptolocker.exe

  • Size

    47KB

  • MD5

    f2d8b12a72ca71c468c770dc70920ab0

  • SHA1

    b5874a62b3f110326f5fad29e8b19eb97ffd8d70

  • SHA256

    972ae2e878a7835c50d210d25aa655932af0a54603911ee8ddb49cc0de714565

  • SHA512

    882635234cfd82c14fec4013a2b3355d5e01eeef52ec884c483e9b1e31183f0c9bd42dc1298364cfdb5e7608bccc798f0eaf9ee83db831ddbb50431032ec7fbd

  • SSDEEP

    768:qmOKYQDf5XdrDmjr5tOOtEvwDpjAajFEitQbDmoSQCVUBJUkQqAHBIG05W2Mobpv:qmbhXDmjr5MOtEvwDpj5cDtKkQZQjv

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • UPX dump on OEP (original entry point) 5 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\2024-04-27_f2d8b12a72ca71c468c770dc70920ab0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-27_f2d8b12a72ca71c468c770dc70920ab0_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2752
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1728

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    47KB

    MD5

    e12e3640661d537c8274096382b573d2

    SHA1

    ac122c039425519c39a2bd693509fbad919cc241

    SHA256

    70e5ec68a06c0021464d3c21689c0c3a84e020f3398d2ed1c0106f964188b3c7

    SHA512

    aadbcfdc999c422d253ce8b88b9d60f78316c4f91b8bb582a717b65fc67ed7898c827104b877e29024bcc65804dc998432cd1baa95d1c926cac8519daf1c7010

  • memory/1728-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1728-20-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB

  • memory/1728-27-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1728-28-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2752-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2752-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2752-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2752-2-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2752-17-0x0000000002A80000-0x0000000002A90000-memory.dmp

    Filesize

    64KB

  • memory/2752-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2752-29-0x0000000002A80000-0x0000000002A90000-memory.dmp

    Filesize

    64KB