Analysis

  • max time kernel
    95s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 08:29

General

  • Target

    2024-10-05_73954563a2ff3afd515d656cb63fd7e1_cryptolocker.exe

  • Size

    40KB

  • MD5

    73954563a2ff3afd515d656cb63fd7e1

  • SHA1

    1120796b2a6443632e51f23a6920bc781f6b66d2

  • SHA256

    d822771e8745cebff9cde370385acbba1d0705b237f06283e0bc36271183a299

  • SHA512

    40a105678aa632c668606ece59def0186b3589fa833ce76a3dedbe3ceeab6b09c531475115bb8e40d011b02ef9936f87285f86493ee5cdb15b8e4e5e76718d27

  • SSDEEP

    768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4qB:fT+hsMQMOtEvwDpjoIHK

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\2024-10-05_73954563a2ff3afd515d656cb63fd7e1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-05_73954563a2ff3afd515d656cb63fd7e1_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3472
    • 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:3988

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          40KB

          MD5

          c51879abb4e486c9d85a6bb27fb61d4f

          SHA1

          c971e70e22f9dba70de84fe4c8db6f6ba55fa867

          SHA256

          e00b021f6356050d31ffc221fff5b5373a32c1c54ce0f2684a69eb87b8cddb09

          SHA512

          ba1183aa0d640e3f5f04a87a2bae7cf99b0773fc4f2134e0a2154bc001bb61579d171f5450add932a24d3dffcbedf53f8ada3eba535dafb3e7d65c628c34af09

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/3472-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/3472-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/3472-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/3988-17-0x0000000002080000-0x0000000002086000-memory.dmp

          Filesize

          24KB

        • memory/3988-23-0x0000000001F10000-0x0000000001F16000-memory.dmp

          Filesize

          24KB