Analysis

  • max time kernel
    134s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2024 13:24

General

  • Target

    2024-09-01_03949a6195f039350272a754cc6ebb75_cryptolocker.exe

  • Size

    74KB

  • MD5

    03949a6195f039350272a754cc6ebb75

  • SHA1

    3b3721d40fcc97a71a975bb97899aa6451701a07

  • SHA256

    1c775a0d209fc88e81f75fa6b3bbea0782d054df1c4960950e83768b238b9c6a

  • SHA512

    45910d125868aedde9e28175bb006345b90eb1596df44c842822b86c7b8ae0b7778f69b77c380c3e85a78661012be20fbde8f443d1a1a240efd216010f4dcbdc

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/Rh:vj+jsMQMOtEvwDpj5HZYTjipvF24hP

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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-01_03949a6195f039350272a754cc6ebb75_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-01_03949a6195f039350272a754cc6ebb75_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:548
    • 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:4628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    74KB

    MD5

    f6e48e7e9268519d68da64e08c282fc8

    SHA1

    98e61b0d62fca5c0e3969556f8f58e6a20756ea8

    SHA256

    8cc754632c2efc27b8bd564237aa670c5524b1235a6910023bcb26a97f78b136

    SHA512

    7ac8342708bbdb4428efb7a8fc27437550c8c4c8ffc9efe49518ba0c981b0e120226070866cce25a7b5333e3652c128dfc66383df46489103fe9ccb5b81a5b04

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/548-0-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB

  • memory/548-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

    Filesize

    24KB

  • memory/548-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/4628-17-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4628-18-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB