Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2024 05:28

General

  • Target

    2024-09-19_53a643e6655943e9705c2fefeb54be20_cryptolocker.exe

  • Size

    41KB

  • MD5

    53a643e6655943e9705c2fefeb54be20

  • SHA1

    fd17969e066c54e63f1ac0f6503145eac7841441

  • SHA256

    b218b3a665a88f6248c195a375b201e9f665c46bbefe167d74af8fc3def8eaef

  • SHA512

    fcaf987735fa07cb4e6077e583cb284d893e6844d13ae9bbca16553d7d609d7528308d0c8dff9045f749b1e29f504cb3f12ca5af2f0cf6e1ffeb7bbb3802cac2

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4tKMLGokL:vj+jsMQMOtEvwDpj5Ht1qokL

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\2024-09-19_53a643e6655943e9705c2fefeb54be20_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_53a643e6655943e9705c2fefeb54be20_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:404
    • 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:628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    b9c336c42f390031677e6247e4cf654d

    SHA1

    4e269b759120d155411d3bb67c3a9fa7b77d0594

    SHA256

    48b52944d11ec9bfa39dae884b19c5dddb96462ce51428d66d683840f2e95a54

    SHA512

    caa7511d0559b104cf84baf5b40557d863f9d0088bd4232be76976b6e322af33c8e9b2fc1a3c7879066adeb369e22238939665cebc4e555ef9a38494b94a61ee

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/404-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/404-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/404-2-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/628-18-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/628-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB