Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/05/2024, 03:28

General

  • Target

    2024-05-01_0bc82b88ec1a58018c5922d4cd4a9b7a_cryptolocker.exe

  • Size

    50KB

  • MD5

    0bc82b88ec1a58018c5922d4cd4a9b7a

  • SHA1

    de1a00178cab1e555bab66a016346a5a86ed1636

  • SHA256

    c09dd192dbf610a300ad552a258b0c493a868aba5a294d79fb4e0c8197475460

  • SHA512

    ff435efafd35c48135f39d05643e8867d13080164976d87e37470c7d5af9de00c7d563a397e8ed99fcebaa770a399606095f478d67ce69c4322d47e7ad174c5e

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ15x8F:ZVxkGOtEvwDpjcR

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-01_0bc82b88ec1a58018c5922d4cd4a9b7a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-01_0bc82b88ec1a58018c5922d4cd4a9b7a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3052

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          50KB

          MD5

          cc7aefe26c6137cc42fe3a0842f35cb0

          SHA1

          1e1df6998a4d9679a97497b927c40216066262eb

          SHA256

          24618eb61f1ecc698efa4de0eee002c2e2947e4b90ed80911d33b6259b5d8fd7

          SHA512

          2795f996471fc5adb93999fcd770cccfe70ed1dc1d83cca8d47ace2217f398768208fcdfb8501eb2c561d455f7522e81f49a4bcb50426e7099918bcb0ab4b89d

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1752-0-0x0000000000460000-0x00000000004A0000-memory.dmp

          Filesize

          256KB

        • memory/1752-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/1752-2-0x0000000000510000-0x0000000000516000-memory.dmp

          Filesize

          24KB

        • memory/1752-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/3052-17-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/3052-19-0x00000000005D0000-0x00000000005D6000-memory.dmp

          Filesize

          24KB

        • memory/3052-25-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB