Analysis

  • max time kernel
    135s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 08:26

General

  • Target

    2024-10-03_45c9c55f8dcb0d63fa7b33a06561b879_cryptolocker.exe

  • Size

    53KB

  • MD5

    45c9c55f8dcb0d63fa7b33a06561b879

  • SHA1

    8c55cd539b6bfd4cb95fbc0d060963031698c239

  • SHA256

    5b2a329bbdbe2c4ee82e6bfb2425fed68c1f849e929bb219b567b9b8143717dd

  • SHA512

    27c91d37e03685090c30baec96b30c12ae74a9e3929e13eeba1ec228e4850ed2c1663aec0c2d005698a5a0bc4f7c788fab08904d112a02274e17078cb7952987

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmB0ntbch:vj+jsMQMOtEvwDpj5HczerLO04BGch

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\2024-10-03_45c9c55f8dcb0d63fa7b33a06561b879_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-03_45c9c55f8dcb0d63fa7b33a06561b879_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4916
    • 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:4116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    53KB

    MD5

    4fe67227763b87c52ecd5ddc263ad9ea

    SHA1

    54bf4fc58197674a4044d7561ecbc9898655fe2a

    SHA256

    ff950681b9635308fed6faefdc85d1b65557266bef60edc80bdeea8b75ef8dc1

    SHA512

    b9cdc99b78404cc3d959b8d94d84279d8d43eb61c076f936ca7eca52e5a5b919a1d8211574e885175d84416a39800698da104799ddc83e9e129bd91370add086

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4116-18-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/4116-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/4916-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4916-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4916-2-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB