Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 04:41

General

  • Target

    2024-06-10_4025e9ab35ae133335b3c99f5a14d796_cryptolocker.exe

  • Size

    92KB

  • MD5

    4025e9ab35ae133335b3c99f5a14d796

  • SHA1

    9b0903beb769ae04d023aeffcaaa14aef9ddc65a

  • SHA256

    737affe979ce52bfa354fd63025cd8aa2146122d01c88270d3367b945d684cf1

  • SHA512

    5982da96526e3e1cf61d9a0d96e6e6be9be1f5946dd59c8ec38c08bd04de349303fc129f32016b6ec1905db446eb1aecd21bb6d20c3115e4addff4dce43b6351

  • SSDEEP

    1536:f6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAw:f6a+1SEOtEvwDpjYYvQd2Pw

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-06-10_4025e9ab35ae133335b3c99f5a14d796_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_4025e9ab35ae133335b3c99f5a14d796_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:612
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2152

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          92KB

          MD5

          29fbea81a546579211387e171b11ab1e

          SHA1

          9838493a31647e6fbacd77f7bc22f45a5c2934bc

          SHA256

          89353b349ad37bb7661e4d2fab92df99fcd518a9a5a3c5a37e5d5b06bd41f99b

          SHA512

          0171b1bcb0fb92f37b9c5e42bf6c1e2413caad36d3bda6dbd75f000860f33566a4413cd444ffba5bf069437719cd33eb44843fa31e4177966dab1b98c2934c42

        • memory/612-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/612-1-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/612-3-0x00000000003B0000-0x00000000003B6000-memory.dmp

          Filesize

          24KB

        • memory/612-2-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/612-15-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2152-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2152-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2152-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/2152-26-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB