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Analysis

  • max time kernel
    79s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/09/2024, 04:36

General

  • Target

    2024-09-25_ab0f9dd42c1043d8637fce86fecdc7fd_cryptolocker.exe

  • Size

    119KB

  • MD5

    ab0f9dd42c1043d8637fce86fecdc7fd

  • SHA1

    3dafb7dc22ccad584f6860fc448a275c3bc94a9c

  • SHA256

    8755b364d286235cac7b49096fbacd6337c817e66fff86ae3842f3d939131d7c

  • SHA512

    2657ad247ee4548ba740bc2251f8c9eb1eeb3eaf606d5b75bbf1bd0866d8b057a4bac6e9857e28aad5afb4496912af0cdc13b0ba98d5b3fb8cf03d91c8f750e3

  • SSDEEP

    768:gUQz7yVEhs9+4T/1bytOOtEvwDpjNbZ7uyA36S7MpxRIIXVe3mU9TYwlOBTT:gUj+AIMOtEvwDpjNbwQEIPlemUhYj

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\2024-09-25_ab0f9dd42c1043d8637fce86fecdc7fd_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-25_ab0f9dd42c1043d8637fce86fecdc7fd_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3572
    • 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:4860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    120KB

    MD5

    d2a3abdb2fbe5238f84b167809f8f434

    SHA1

    96527ef8ff0f054dbc98e23639d3f90ee3090f8a

    SHA256

    2b85086dd8939d86785e5ea63bfc981affddd448a2da4e3c498984da4f202da1

    SHA512

    3ca32f5bc3a4744adda467a489a4e9c73ada6dbd91b9e30db84ba59ef098ea4b67707a04dc6df0d4b7831ead46c0790acfb9fbacdd4032a9faa10dce423732a1

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3572-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3572-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3572-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/4860-23-0x0000000001F50000-0x0000000001F56000-memory.dmp

    Filesize

    24KB

  • memory/4860-17-0x0000000001F70000-0x0000000001F76000-memory.dmp

    Filesize

    24KB