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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17/04/2024, 05:30

General

  • Target

    2024-04-17_1e098a91f5deba98f586a01e2b2206ba_cryptolocker.exe

  • Size

    33KB

  • MD5

    1e098a91f5deba98f586a01e2b2206ba

  • SHA1

    5063a0c4f10761292b4eb8bf8def94ff00034b2f

  • SHA256

    0bc398c17feb0dc8a948419b48eb013cc133e2c14bd83e27974ae394f555f377

  • SHA512

    bc69df6db67952696e1ba387cace5fd3959003650b2b9279e542f5eafe30821564b7b32c8da18963344f3b53dce22d1e681d91cb3675412b0e4fda2dc43f9116

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cuM9gxrW:bAvJCYOOvbRPDEgXRcuM9gxa

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-17_1e098a91f5deba98f586a01e2b2206ba_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-17_1e098a91f5deba98f586a01e2b2206ba_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:2748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\demka.exe

    Filesize

    34KB

    MD5

    c412382b8f543f3d11ae17fd6e59b169

    SHA1

    fc00fb65d8c790fe093beb011ec0e58715c62895

    SHA256

    a0f7234c8e146726a9af0caaf249364badf34eefb5241f8cee4737cc74ab10fc

    SHA512

    89bf44da50a69b8a21568a1a80143b01db2fdcc5c742d5135359b12a12a0075826d47dd3a9d04419acf8bad41cef12cb9fa9b5ffabe2e45d6f5c646a31bf17a4

  • memory/2112-0-0x0000000000410000-0x0000000000416000-memory.dmp

    Filesize

    24KB

  • memory/2112-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2112-8-0x0000000000410000-0x0000000000416000-memory.dmp

    Filesize

    24KB