Analysis

  • max time kernel
    96s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/09/2024, 02:38

General

  • Target

    2024-09-28_ee46d79d93fb66a479cdfc2e0874446f_cryptolocker.exe

  • Size

    85KB

  • MD5

    ee46d79d93fb66a479cdfc2e0874446f

  • SHA1

    7e1adbfbeb4bbb0be3d20f415efc06b7d4f12552

  • SHA256

    79f4c649f9c437950ba533d9277d2297084723022e3edd4b0b856e84335f8355

  • SHA512

    15c3ab0490f34a89c177c5895cb2807eb13dea7ad02bfd6c202025968d3aaac713ba8598a3e71bc1f875a617c5b4aec6e7eb6b5f9056318ee9ea1fdb0f60dccb

  • SSDEEP

    1536:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8AcrM:okFDOtEvwDpjP2M

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\2024-09-28_ee46d79d93fb66a479cdfc2e0874446f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-28_ee46d79d93fb66a479cdfc2e0874446f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4660
    • 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:1300

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          85KB

          MD5

          b0ae26d413ee1c6c5bc4f62c28660099

          SHA1

          cf7a644867582efb8a8e291b7e86e5526f2966f7

          SHA256

          e044f6f85ea49171ad1ac3c93afd8e08f0e605a7d47307efdcf3a7ca3e025c66

          SHA512

          154d86d34f77bf89854c9f719eefcb5df53489e63df989c869ee965be803e1ae6b77a2701888e0781b120b634a7f5ec91f6a6015675fe2c31ae0ca0b14cbdbcf

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1300-19-0x0000000000530000-0x0000000000536000-memory.dmp

          Filesize

          24KB

        • memory/1300-25-0x0000000000510000-0x0000000000516000-memory.dmp

          Filesize

          24KB

        • memory/1300-49-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/4660-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/4660-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

          Filesize

          24KB

        • memory/4660-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

          Filesize

          24KB

        • memory/4660-4-0x00000000005F0000-0x00000000005F6000-memory.dmp

          Filesize

          24KB

        • memory/4660-17-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB