Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 21:41

General

  • Target

    2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_cryptolocker.exe

  • Size

    40KB

  • MD5

    e0f17ee4360c34ee7c7bafd8080d956e

  • SHA1

    d2249578c4bacb7676bfe45160714e2e1d44ed28

  • SHA256

    f784f269cfc66250dce1ce50fc804144861151b2fbf9c260351b4841f42ae6de

  • SHA512

    9f1dcbae9068b94685fb41a33be79c423bbfc657e07f5f0a9f8798ba7ecf523354f878f722b56d831b7cf7b6a00fea5a25e15fda83a067aeb890f816154810c9

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYabDbX:qDdFJy3QMOtEvwDpjjWMl7Tdr

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_e0f17ee4360c34ee7c7bafd8080d956e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2996

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          40KB

          MD5

          75aa511b8642ae23bff1fc3a22deac6e

          SHA1

          a65c73a943296aa81b103f29093c3a81bed6a10d

          SHA256

          e112fe4bae004918faf0efb5ae338aeaa536a8c5f358d857915d3ee1ed11559b

          SHA512

          adfdf748beddb136d7007b453384eda1029f471b672ce75839c5b8b97859f7efa0be6679f4a58656606ea915a2b2c8784f0d1f6ed8184c6a2b7959aeeeb64c31

        • memory/2444-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2444-1-0x0000000000440000-0x0000000000446000-memory.dmp

          Filesize

          24KB

        • memory/2444-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

          Filesize

          24KB

        • memory/2444-9-0x0000000000440000-0x0000000000446000-memory.dmp

          Filesize

          24KB

        • memory/2444-12-0x0000000002740000-0x0000000002750000-memory.dmp

          Filesize

          64KB

        • memory/2444-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2996-26-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/2996-27-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB