Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2024, 06:47

General

  • Target

    2024-11-21_4fece32507702e9e124394871c895225_cryptolocker.exe

  • Size

    73KB

  • MD5

    4fece32507702e9e124394871c895225

  • SHA1

    84562c6a8536400fbbaefccf8f7f774950b779af

  • SHA256

    9e2cfd1f326e38865be7ebf588945668f40ac024e895ad3260953d0aad615a60

  • SHA512

    5f148c4ec08dce125b3367827fb4e441d0caf83186aed3dd8a02a64116929b08ac068d15bc4d727484bc15e632527658859deef6798d1e4673ec24b157d1a359

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/RG:vj+jsMQMOtEvwDpj5HZYTjipvF24pc

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).

  • 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 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-21_4fece32507702e9e124394871c895225_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-21_4fece32507702e9e124394871c895225_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1056
    • 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:2600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    73KB

    MD5

    3d26f86de29ab4d9b827ba9038d53c2f

    SHA1

    ea31d8af0df481ccab35d46213cd24dd243a14da

    SHA256

    fc2493af263a45efd21821f7f886820c6406061557c81981281dd8226e03fbfc

    SHA512

    6ab362d16547c73373e29e893d49ea8395c553f1071687cf9861758e34d3311f7dd5298d5127eb2498a2f1f034a59027f477318c6ccf02602b9835376a6173b7

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1056-0-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1056-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1056-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/2600-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2600-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB