Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-10-2024 08:27

General

  • Target

    2024-10-31_77cda428a0012b5f50aebfb8bc0fdd03_cryptolocker.exe

  • Size

    57KB

  • MD5

    77cda428a0012b5f50aebfb8bc0fdd03

  • SHA1

    2424b060c8a833c73243a4e892988288ce1d3b36

  • SHA256

    06e5e14e87b203eb0f81465d16c60abd450d8eb7b244f10434a6fd9ff30484d9

  • SHA512

    6e584a932b87635af98cdd220399a7abbba23d8a62a5336305fd297e9b375ff2c966d41d352d0004f114c5d332e4e8c873ca2c14c0a7795103825947bcbebf45

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7Goi20HA+SF:xj+VGMOtEvwDpjubEgV20gP

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\2024-10-31_77cda428a0012b5f50aebfb8bc0fdd03_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-31_77cda428a0012b5f50aebfb8bc0fdd03_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4324
    • 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:1092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    57KB

    MD5

    81817a8c4cab9f498c3f2f0198fd385a

    SHA1

    7b0aa4f8b70b9d6590e410137604e770827d87b3

    SHA256

    97d46fed586a84e18b34b57ea89fdad85f29c470ca5e70f61998a780a925c4b4

    SHA512

    6dbeeb61b1f98f49e3ebaf8a23871051bb02aaf14e76dc9001a84631d4416b6dbfb5be222fb10d8e3df36d5dd03f08bfad63ab9c6ecfa32ffe7874aa73b468fa

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1092-49-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4324-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4324-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4324-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4324-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4324-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB