Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 19:11

General

  • Target

    20240522dd34407ae668b4d497e503c83163be42cryptolocker.exe

  • Size

    43KB

  • MD5

    dd34407ae668b4d497e503c83163be42

  • SHA1

    917b8cf9c59a042d66def1d47043b6452115bb21

  • SHA256

    8198155a1a95675ac20efed6df1b9519a599b9af9ae1ab0323569beb278f36fd

  • SHA512

    387444035606e5e0aea689142b62e0762b5631c129415dcc96eaabaedd20e99c3778ee64725979115e243afc8ea47c4b17246d56a2756852dcde31f7fe31b4fb

  • SSDEEP

    384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDU7b:bm74zYcgT/EkM0ryfjmb

Score
7/10

Malware Config

Signatures

  • 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\20240522dd34407ae668b4d497e503c83163be42cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\20240522dd34407ae668b4d497e503c83163be42cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    43KB

    MD5

    11579c10483d503d76af3a54717edbad

    SHA1

    508c952b9f1c6907d5455649a04eb4760b58e112

    SHA256

    2c105a7e65af7f4886aea4a6297a2bb92772a703e92ec01ee2abd3d24f148bd6

    SHA512

    f0877361f356a6c1661b84035b27e370bf74df4807ab4ad77f0697c29e91dc6aafd2de7a7121809a08373eea06e7c21a66df1efa6677790994c1590c3c28ee31

  • memory/2244-17-0x0000000000710000-0x0000000000716000-memory.dmp

    Filesize

    24KB

  • memory/2244-25-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/2244-24-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/2244-26-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/3012-0-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/3012-1-0x00000000003A0000-0x00000000003A6000-memory.dmp

    Filesize

    24KB

  • memory/3012-9-0x00000000003A0000-0x00000000003A6000-memory.dmp

    Filesize

    24KB

  • memory/3012-2-0x00000000003B0000-0x00000000003B6000-memory.dmp

    Filesize

    24KB

  • memory/3012-15-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB