Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01/06/2024, 18:26

General

  • Target

    2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe

  • Size

    62KB

  • MD5

    4994043445cf25f76db6b303ed9c793d

  • SHA1

    492494ee0b48aaca703bf2c42914492f5592d3aa

  • SHA256

    c236bcf482ce4edaff44e683080d560b02b78dc02a7a6ab4acf7e5b4334d07cf

  • SHA512

    6feb9e5332adf3f1542876ae418dd50fc5d8c211065585d641eda3cc617ca3466ccb50ec2d9d0fad74541a7842f5041e3e3210bf6b5622b735c91c8abac56037

  • SSDEEP

    768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9P:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWy

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\2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_4994043445cf25f76db6b303ed9c793d_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2148

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    8e5fe5773097644c570988087a16e4f1

    SHA1

    2bff68b6a8aea7f834fa605efc7cba6c240477d7

    SHA256

    9aa70f5ce91b370c9baddf232f5549299ced6f28ed366f58f62c1c418b5d99d6

    SHA512

    891c474cbaac04e3c6993ecf032626002d7869e4c9c5feea80da062ca9e7a224f81f2cd6daecc7e396180c17378d7992ddb6c1aebdb4989b55e39148e8f65fe0

  • memory/2148-24-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2148-17-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/2148-25-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2920-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2920-1-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/2920-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/2920-9-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/2920-15-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB