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
    02/06/2024, 04:46

General

  • Target

    2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_cryptolocker.exe

  • Size

    54KB

  • MD5

    d7627b3ede76fea4ad6544f77832c7e9

  • SHA1

    61402a036805300025b29f3a3db33201dd9f9777

  • SHA256

    d10cdad7b7bf53417dd9b3675d13bedf80229c5d54b850fba371de96bd5b5a74

  • SHA512

    c54fb0aba94b1a75cfbd97660d293c6a67254469a2fb85c65ec92721351843a9234209ff1651a4c73f421379386ca9995035cfe1a07f1c52facceeb74a1cdbc5

  • SSDEEP

    768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOkgPYe:z6QFElP6n+gKmddpMOtEvwDpj31ikgt

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\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_d7627b3ede76fea4ad6544f77832c7e9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2896

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          54KB

          MD5

          252b9c3189d0cf22859610619a3b8383

          SHA1

          ae71becd4696030911c20595f12fce098e3a96fc

          SHA256

          1bb721188e60d9016eeb2190b71fd0240f41b43ab2042525e38619faf94a0adc

          SHA512

          ab269186d0e6cf5ac0db03166893c492a31dc0e0341a0d956a3642a978ce74929b4d09e8de027e2759fbb54eda0a6e1d1f57df0797045a36cbc222ac86470dd9

        • memory/2180-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2180-2-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2180-3-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/2180-1-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2180-15-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2896-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2896-25-0x0000000000340000-0x0000000000346000-memory.dmp

          Filesize

          24KB

        • memory/2896-18-0x0000000000380000-0x0000000000386000-memory.dmp

          Filesize

          24KB

        • memory/2896-26-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB