Analysis

  • max time kernel
    94s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/10/2024, 10:55

General

  • Target

    2024-10-06_df7c93328bbe4f225e868ec46daa204e_cryptolocker.exe

  • Size

    59KB

  • MD5

    df7c93328bbe4f225e868ec46daa204e

  • SHA1

    ad81a95e679c583e4e9dae8d854c3cabcfc4e62e

  • SHA256

    4af13952be9d1da99e8c3ee35654534ed57a1f79ec8b1894f82b9be0d949c8d4

  • SHA512

    3a3f15650758d71a9d9e096bc9f558b90bec00e3b04cf6d29f3b8d2fd91de28f899e9de1d21cda5e0f3c9a100c75d8ab6753a62c969ba2e4ad00083f068261fc

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelagPXPECuMpmHs:zj+soPSMOtEvwDpj4HE9Mpp

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-06_df7c93328bbe4f225e868ec46daa204e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-06_df7c93328bbe4f225e868ec46daa204e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2932

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          59KB

          MD5

          992c95c2d1821c3a670b214463dae6db

          SHA1

          68081a093a88f6e13f93d757718d9a4c6ca2ffeb

          SHA256

          d738fcefbbd39c5730c0f2a1a2b8611567db54aa46d93479d348f82ebad499bb

          SHA512

          da3507cd0303e4130d53e1713fcca26fa8b979ea79f536f5ccb2f6003469f05f22d6988fcd51906a4ba512da40baf6cdd95612e1563a564bbdaa9bf85bf35d8c

        • C:\Users\Admin\AppData\Local\Temp\misids.exe

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1504-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1504-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/1504-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/1504-3-0x0000000002240000-0x0000000002246000-memory.dmp

          Filesize

          24KB

        • memory/1504-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2932-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/2932-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/2932-48-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB