Analysis

  • max time kernel
    94s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2024, 13:47

General

  • Target

    2024-10-13_93d1b02366787ea5c681aeee80afd380_cryptolocker.exe

  • Size

    55KB

  • MD5

    93d1b02366787ea5c681aeee80afd380

  • SHA1

    d2fbc0fb8fbc62ada81624b354c04e440c92a1d0

  • SHA256

    6442f75843f23c0061f2020a10828077b1b21b6899676a42d4d7d68e1a8dbea0

  • SHA512

    5e259f9f79bff18b9b5b3e608e9d5f8714f6c579752d1efa1fde0e15971d1790b3fac3599fb818bbb1cf63a2ad17586ccec5e61c48782b9d022470478afbe78f

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EM1:TCjsIOtEvwDpj5HE/OUHnSMm

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\2024-10-13_93d1b02366787ea5c681aeee80afd380_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-13_93d1b02366787ea5c681aeee80afd380_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1648
    • 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:3980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    55KB

    MD5

    860a0e652207cc7a0bca0790d88c17d0

    SHA1

    a09870fb845b48a0cf16feda0d400b1c031b3810

    SHA256

    325b7c13e967fbd785c13dcf724b74ba07ac8ceceaec2e2cfc92411dbc99b1f6

    SHA512

    a3a95b235845e0390124b6b44a4cb31dfb147f9e7df6e2d2a06a32ee92cd5b6bd735dc3f926a3c0b6b0051fee6eed771cf8797f841a0099cd740773346953ce6

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1648-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1648-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/1648-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/1648-3-0x0000000002240000-0x0000000002246000-memory.dmp

    Filesize

    24KB

  • memory/1648-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3980-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3980-20-0x0000000001F50000-0x0000000001F56000-memory.dmp

    Filesize

    24KB

  • memory/3980-21-0x0000000001F70000-0x0000000001F76000-memory.dmp

    Filesize

    24KB

  • memory/3980-47-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB