Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 04:49

General

  • Target

    2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe

  • Size

    42KB

  • MD5

    e16b4d3ea88080431fbdefbedf57f155

  • SHA1

    41c013b8f21bb07505aa3da8e05722494a45a29b

  • SHA256

    be08bb522045dd6dbf020ea65b7457d1fb0387edca2e8d39a8dadc06449af456

  • SHA512

    eabb7adc92d9edc40701db4fddde45312f2445c920ec2a0adb031cbc9cfe4edde2464e210ef4087ea02f47649ce1004521a4fe58f7fda32761b0eb064667532c

  • SSDEEP

    768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqAH:bCDOw9aMDooc+vAqAH

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:2192

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          42KB

          MD5

          ea21a9f2322f1025f08a6fdca575b77c

          SHA1

          64abf3bfb99f657402bf259c0cc736ad77deca4f

          SHA256

          56a39ca7c530120002aafdae16e390569aa860e95c7779d7d41a142edbd13c34

          SHA512

          8ed2f74f34c1053280554a333512d89c5f76887bb87628abb6849301230c750b3ca7b20d5acf9029dc39874508f7b450ee39a2193e82e34d85280672adf2071d

        • memory/2088-0-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/2088-1-0x0000000000320000-0x0000000000326000-memory.dmp

          Filesize

          24KB

        • memory/2088-2-0x0000000000460000-0x0000000000466000-memory.dmp

          Filesize

          24KB

        • memory/2088-9-0x0000000000320000-0x0000000000326000-memory.dmp

          Filesize

          24KB

        • memory/2088-15-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/2192-17-0x0000000001BB0000-0x0000000001BB6000-memory.dmp

          Filesize

          24KB

        • memory/2192-25-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/2192-24-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB