Analysis

  • max time kernel
    147s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/01/2024, 06:49

General

  • Target

    2024-01-08_e13c030ca85de32f6fb0af13acce93ba_cryptolocker.exe

  • Size

    62KB

  • MD5

    e13c030ca85de32f6fb0af13acce93ba

  • SHA1

    f92b12dbfd08c4f16e76b21f59c0d9392734c599

  • SHA256

    15dc0c5ce357c0a8ec2a40952aa5498da3b612d16c01704ab74710d1756e600d

  • SHA512

    316b4faaf7db2022d3f541dab10f3798c03e36fc655a3c1032d95ac7ee06ca9bc06eaab64499066f89ce20a0c2b72f6d539c551b359bcf6d1175bc6da19451c8

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE3c:6j+1NMOtEvwDpjr8ox8UDEpf

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
  • 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\2024-01-08_e13c030ca85de32f6fb0af13acce93ba_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-08_e13c030ca85de32f6fb0af13acce93ba_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3612
    • 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:1548

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          62KB

          MD5

          61fd15a5aa42fe809b3668393d5e7643

          SHA1

          684eb0210cd3d2c2b8106862324e1199083b9e59

          SHA256

          0899c75d033cd929a3f8269928963e2eff26bbe89de60b04d95b7e482654e0b3

          SHA512

          a61f25e33af1c1d509a1bcd7aa3d129df1848f53e769bf54992c2988f301626e015163d06a0405919605c3926144eb3a446a3c6358abc37d9a2699a03410b74f

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1548-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/1548-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/1548-48-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3612-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3612-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/3612-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/3612-3-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3612-4-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB