Analysis

  • max time kernel
    140s
  • 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
    25/08/2024, 20:33

General

  • Target

    2024-08-25_96671cb6f07e25f491a511f06cc6df5c_cryptolocker.exe

  • Size

    40KB

  • MD5

    96671cb6f07e25f491a511f06cc6df5c

  • SHA1

    e491c9410084c24b692f6b0519a8d3ef9ac8211e

  • SHA256

    7381b777e4545467106f2e5bf7751400f029b4f588c846aa396c399889d28651

  • SHA512

    88314560a739ff79bff5ab25ff57a52f6ac6dfd095e2b3d327b364539cd53f56d2380dbb7cdf18850e7ba807ce502e9a83c49ab682b0f9aa3db150e76a5fad3a

  • SSDEEP

    768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4qc6:fT+hsMQMOtEvwDpjoIHG

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-25_96671cb6f07e25f491a511f06cc6df5c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_96671cb6f07e25f491a511f06cc6df5c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2128
    • 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:2448

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          41KB

          MD5

          5482fe0d3de9e2b62efa22ed5c405d1e

          SHA1

          daef011b6afc1610c2b0078526fa2e80c6b98a79

          SHA256

          8ccbe918eab4b2102b9b4f1212c48acc9e1619e08377167a63b4bbc7525c9d8a

          SHA512

          a5f481e23b502f2b22b34b4b0ce287cc7b7b6014924c38577fa9b1218a4f15c4a9fa39cfc5645b30f1fbcfd3582b2b2d3b1dfdfc05485c8edbe65679405ace7a

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2128-0-0x0000000000690000-0x0000000000696000-memory.dmp

          Filesize

          24KB

        • memory/2128-1-0x0000000000690000-0x0000000000696000-memory.dmp

          Filesize

          24KB

        • memory/2128-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB

        • memory/2448-17-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/2448-23-0x00000000004C0000-0x00000000004C6000-memory.dmp

          Filesize

          24KB