Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2024 12:18

General

  • Target

    2024-01-06_f5bf91723383836d8ef039cadd4f5c22_cryptolocker.exe

  • Size

    60KB

  • MD5

    f5bf91723383836d8ef039cadd4f5c22

  • SHA1

    c96eb62591e74f5edaddfafb8ec4359449971b68

  • SHA256

    ecf9684345b3e12bad0c3446e32738140b5ba50cf78c2c2f48e001b5501bfcfe

  • SHA512

    99c35647fa0341d2dbb22ea1693ed6cc2abcf918cccf620adb96aca857de4ceda5390090740ccfc9f3a5a5b91083ee037ae62708f14f1c7e5fa4cf1227ae4d21

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMTI5:TCjsIOtEvwDpj5HE/OUHnSMH

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\2024-01-06_f5bf91723383836d8ef039cadd4f5c22_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-06_f5bf91723383836d8ef039cadd4f5c22_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    60KB

    MD5

    0c71a98a126bfccaef69a5ab624da12f

    SHA1

    8e780b5324fe8eccb00331681348b2ce85995a15

    SHA256

    8496ed23273d4e7e43f6ca1f2425850d7a1e07b20cd9b140287bf03cfedf6c1c

    SHA512

    d702fcb75d4b7e98ce5ed0a00739e7cea1b5c6727be90432d821ff3240a81ecd9aa34158a444d5dfcd8051ef049eacfa0fcc578b536afe67c3c2372d50b4ede3

  • memory/1100-15-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1100-17-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/1100-24-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1100-25-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2420-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2420-2-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2420-1-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2420-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB