Analysis

  • max time kernel
    145s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2024, 00:51

General

  • Target

    2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe

  • Size

    54KB

  • MD5

    cc4a0bde4033b49ca0ddab6c0a7a211b

  • SHA1

    d4d9fb4d526b5b58296f25eb0856f336cd758326

  • SHA256

    65e2cb1c8e6fd42cbe8c6da0cbaed42d7cf1a2d5d2d1c23a2abfdd09cfded3df

  • SHA512

    19a16e44d97bbcbcd4d9b34ce18a7d7adb49ffde42b308109e9a7cea569cd59240b72d7e124c7197052a978d468c5d61fa1c0ff732c78e42ca0d5b6ab9e26903

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRkHI:6j+1NMOtEvwDpjr8hhXio

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3560
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3524

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          54KB

          MD5

          7d0819c1d1df11bfe75cfab6a1346f26

          SHA1

          1fa8216b8696725f241555b050eeaf4300d1d6d4

          SHA256

          4ac2c2f9a73b233d4faecd29ef9f5e878849c10c465583c6c2d20c0a788bc347

          SHA512

          bc804c6f0273bd3239f8dadf1d98ea2fa76a188baf49453eb3a2415f61bc27b79444dac20b412f46898f49190d0c54581b7a044f363e34008eac41f33e27ac3d

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/3524-17-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3524-19-0x0000000001F70000-0x0000000001F76000-memory.dmp

          Filesize

          24KB

        • memory/3524-26-0x0000000001F50000-0x0000000001F56000-memory.dmp

          Filesize

          24KB

        • memory/3524-49-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3560-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3560-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/3560-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/3560-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/3560-25-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB