Analysis

  • max time kernel
    140s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 20:55

General

  • Target

    2024-10-17_fd2e1421786802ccc0b1e778004b09e3_cryptolocker.exe

  • Size

    40KB

  • MD5

    fd2e1421786802ccc0b1e778004b09e3

  • SHA1

    0dbd529addd96571f55a5e541c7b42387aa6856c

  • SHA256

    7bf1e0673ed0cf9ea121a72673fad43efb6f61a0ec222ef5d250f5afad3ea549

  • SHA512

    f2aed1b0408c7556e7ee73de20b8d380164636cf422a8746599f8051083bb591dc096855dd7e015caa478dc0c14066f5a3cb389146db1ae312c20f808a217503

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6nz14k:6j+1NMOtEvwDpjrRz14k

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 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-17_fd2e1421786802ccc0b1e778004b09e3_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-17_fd2e1421786802ccc0b1e778004b09e3_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2736
    • 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:1672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    855b35c79d1faaeac7381321b12e680e

    SHA1

    294b28116ad0e9d1df13b5c2fa353b6e0912468e

    SHA256

    3a261fef38e7f0ad0dc8fd662d0b409f75c1ca014ac768d3331926e047818856

    SHA512

    8fc97e4d923aba27dab787957d9d83980396e938b7f14d418a7c6d830ea96e9a7c9fb93ee886fd8c8e715b9200e8f18917dd538649c0cd189df661bb73359bf2

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1672-19-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/1672-25-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1672-48-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2736-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2736-1-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/2736-2-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/2736-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/2736-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB