Analysis

  • max time kernel
    139s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/03/2025, 06:16

General

  • Target

    cb45bfa4b2fad0151564092bb5803d32.exe

  • Size

    580KB

  • MD5

    cb45bfa4b2fad0151564092bb5803d32

  • SHA1

    5bbc7a82b7dc61e1c73586fb3d9fec9665e22b67

  • SHA256

    f94b5b29ce95e24cafe53955807a73c54bd82313be97aa53d1d9b3b5280e2bee

  • SHA512

    647065df8972dfcb51fbcd0982c07c9840fe8f67d24a20bfde2de12bcb9618e751a85bd0726a1f8b9cbed30d6007a1995c3444a22a2c495844fb069172103040

  • SSDEEP

    12288:YbD5arFJwK6hMJ6ZzHFZfc28beMGTfZuqb7L:rBJwdhMJ6ZzHrfcsMGTfZ5PL

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 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.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb45bfa4b2fad0151564092bb5803d32.exe
    "C:\Users\Admin\AppData\Local\Temp\cb45bfa4b2fad0151564092bb5803d32.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2296
    • C:\Users\Admin\AppData\Roaming\Webdevelop\Webfrequency.exe
      "C:\Users\Admin\AppData\Roaming\Webdevelop\Webfrequency.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5388
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
          PID:3292

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Webdevelop\Webfrequency.exe

      Filesize

      580KB

      MD5

      7312c68812938ca6820620d10a73eca7

      SHA1

      27e571001a5e3ade48d6a0acd12bed6492397f32

      SHA256

      f668c05aa69ce676588717a9b432f0e55bae0edc7c441880aec385e2c234273f

      SHA512

      366a9e74ac3dc15860928b9acbe86b5017694945f4aec4d7ec4efa0d7e457cfe630aca6c08ad8c9c396f8d634c955beeb65a91fb98cd7272e9000f21de458840

    • memory/2296-8-0x0000000074C80000-0x0000000075430000-memory.dmp

      Filesize

      7.7MB

    • memory/2296-0-0x0000000074C8E000-0x0000000074C8F000-memory.dmp

      Filesize

      4KB

    • memory/2296-3-0x00000000059B0000-0x0000000005A42000-memory.dmp

      Filesize

      584KB

    • memory/2296-4-0x0000000074C80000-0x0000000075430000-memory.dmp

      Filesize

      7.7MB

    • memory/2296-5-0x0000000005B80000-0x0000000005B8A000-memory.dmp

      Filesize

      40KB

    • memory/2296-6-0x0000000005B60000-0x0000000005B6A000-memory.dmp

      Filesize

      40KB

    • memory/2296-2-0x0000000006010000-0x00000000065B4000-memory.dmp

      Filesize

      5.6MB

    • memory/2296-1-0x0000000000F50000-0x0000000000FE4000-memory.dmp

      Filesize

      592KB

    • memory/2296-7-0x0000000074C8E000-0x0000000074C8F000-memory.dmp

      Filesize

      4KB

    • memory/2296-23-0x0000000074C80000-0x0000000075430000-memory.dmp

      Filesize

      7.7MB

    • memory/5388-22-0x0000000074C80000-0x0000000075430000-memory.dmp

      Filesize

      7.7MB

    • memory/5388-24-0x0000000074C80000-0x0000000075430000-memory.dmp

      Filesize

      7.7MB

    • memory/5388-25-0x0000000074C80000-0x0000000075430000-memory.dmp

      Filesize

      7.7MB

    • memory/5388-26-0x0000000074C80000-0x0000000075430000-memory.dmp

      Filesize

      7.7MB

    • memory/5388-28-0x0000000074C80000-0x0000000075430000-memory.dmp

      Filesize

      7.7MB