Analysis

  • max time kernel
    135s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/06/2024, 21:35

General

  • Target

    2024-06-06_cd162b4adbad7fe2c96a733c25d6ba92_cryptolocker.exe

  • Size

    46KB

  • MD5

    cd162b4adbad7fe2c96a733c25d6ba92

  • SHA1

    2ea117e2feb85db3c384f352d8847efd9b73fd16

  • SHA256

    555ccd6baa25b13227d714423a9eb7014da340972ebca184522a940593fa3d5d

  • SHA512

    e55cc2bc35a247ff8b82554b85779e325ccf06e9fa3acd9cff956051195f5cc94b40a81b34c2cd0823d30cae4a951948c8f0238f4caee796095b65ff42b74973

  • SSDEEP

    768:qQz7yVEhs9+js1SQtOOtEvwDpjxXOQ69zbjlAAX5e9zS:qj+jsMQMOtEvwDpjxizbR9XwzS

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-06_cd162b4adbad7fe2c96a733c25d6ba92_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_cd162b4adbad7fe2c96a733c25d6ba92_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4556
    • 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:4884

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          46KB

          MD5

          7b9e623809dd8482eefae302487de9b8

          SHA1

          d57c4dbd3716d8086679da6afc9576be34f7669b

          SHA256

          21fa6291de75dd99de5ae78848a45c34ba48ed35a15c5ca0dbc9d6d52b3df176

          SHA512

          24a6d26429ed072c2e4d69873a43d6e3d7847e964038d521e435c1fc44f159ff2affee362566a17d0dd64696d4b8a2c8450549f3486fed8a3b4d423d86c7661b

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/4556-0-0x0000000000740000-0x0000000000746000-memory.dmp

          Filesize

          24KB

        • memory/4556-2-0x0000000000760000-0x0000000000766000-memory.dmp

          Filesize

          24KB

        • memory/4556-1-0x0000000000740000-0x0000000000746000-memory.dmp

          Filesize

          24KB

        • memory/4884-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

          Filesize

          24KB

        • memory/4884-23-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB