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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/10/2024, 03:48

General

  • Target

    2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe

  • Size

    63KB

  • MD5

    ad88816bf7909042079d32a09d2537fb

  • SHA1

    215f6ccec693487f9a21f8402e392b667ddaffe5

  • SHA256

    81eeb786547c3879be6b39e4173b3376f63a8bafba57772fc30d3b947bfbba7f

  • SHA512

    5cef0f2d6c6d6d49eb40ba5dca46530f832412a0c021eb872d529439c6ba9d6d0bb9199f57490fdf40e8754f74e4cfa50e5e893073234064fcaa50d7ef2ccf63

  • SSDEEP

    768:P8mnjO6LsoEEeegiZPvEhHSG+gbum/kLyMro2GtOOtEvwDpjKvWxHCbSVaFn0jKG:P8mnK6QFElP6n+gymddpMOtEvwDpjYM1

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-15_ad88816bf7909042079d32a09d2537fb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    64KB

    MD5

    19c519786debaefb53f1f8ea278f140a

    SHA1

    3c0c15cb82e8d3bc4aa8ae7d5a75b669f9ac4b8d

    SHA256

    dbe19720b609d2c82bf0ea3b4fbf8cf90ddd69194a7a602b7f1898323d9e33db

    SHA512

    5c00c179532e14f3c2117edf45a12190ad5e7ef042be190e8dc6cafb56f664c10c40691312ea63a8268bf655e48c9b10fc3ea254e4c412ac401724cd0dcf3f6d

  • memory/644-0-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/644-1-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/644-2-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/644-4-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/644-17-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/3468-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3468-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3468-26-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB