Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2024, 05:31

General

  • Target

    2024-09-11_b99186447f336de857a3c7d66fe1e827_cryptolocker.exe

  • Size

    79KB

  • MD5

    b99186447f336de857a3c7d66fe1e827

  • SHA1

    99d8fcaea3c945d8aacb01b17b1efa00994696a4

  • SHA256

    99f1f39c3d99e4a79af3fd8f1ac762de39ecff0ce6ad615c2c2bbd89c7c49242

  • SHA512

    d583e280bcde83cfa426e2e62311775ef3129e277d157d99278f06e52c99f0e95d23cb4dce6f081d7abeb12fec49751e82edf15201c7b2daa8c540180ef5df34

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUo:ZVxkGOtEvwDpjcaM

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\2024-09-11_b99186447f336de857a3c7d66fe1e827_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-11_b99186447f336de857a3c7d66fe1e827_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4804
    • 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:2816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    79KB

    MD5

    e2f19e35bc4d03ccb0e6453e00e54ed1

    SHA1

    4c7c4aff290bb28e8854344966331526226bb551

    SHA256

    d8cdfe9faafbd56841d82be65826cbf1a62f92ede25ea85b0bc7ff402da20c56

    SHA512

    1ea42f5d31261b8ef15dda5678f1ca98f792dd50a9072bdbcf66129a6980eab1f5573d70d5e13ecef08d1a23e963e7a0870b303c0bd6360699397278deb3ffff

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2816-19-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/2816-25-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4804-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/4804-1-0x0000000002280000-0x0000000002286000-memory.dmp

    Filesize

    24KB

  • memory/4804-2-0x0000000002280000-0x0000000002286000-memory.dmp

    Filesize

    24KB

  • memory/4804-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

    Filesize

    24KB

  • memory/4804-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB