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Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 10:44

General

  • Target

    2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe

  • Size

    71KB

  • MD5

    0af184dc6d2b5c1a1ea944d7d635fb3b

  • SHA1

    738aec0b7c6fa6186264b082f543d22c64046f18

  • SHA256

    c281edbcf4d90093063794de02d2b3bad397eea3d977ff98307de773dc54b425

  • SHA512

    fc86d679f9138cd8171f33642ff27edf381163c18997ebfc7fcd058f4b9d77b2d7ff218e2b3e892f09a6f8ca07896fe419cb31b06c370455cae33aa4e48580b8

  • SSDEEP

    1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO2:DW60sllyWOtEvwDpjwF85V

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Checks computer location settings 2 TTPs 1 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3440
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    c2da6cf1642b26c9e4eaa04706a7010e

    SHA1

    3dfe72657331d8a4de8748f2722592bb61cb1ae7

    SHA256

    3ca6e8320fca4cd2ef3241aee5a678d33c26f800a0d788641d0deda50cbecb0f

    SHA512

    b79fd7b059b4525e7e7ab72544a8f9c517920ead0f59dd1960868d28e0b7b13b99354ba560ab6b7f71c67f4d8248ea97da23cc233de8c315ee3343d66504d4da

  • memory/3440-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3440-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/3440-2-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/3440-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/3440-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3460-18-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3460-20-0x0000000000850000-0x0000000000856000-memory.dmp

    Filesize

    24KB

  • memory/3460-26-0x0000000000830000-0x0000000000836000-memory.dmp

    Filesize

    24KB