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Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18/04/2024, 12:36

General

  • Target

    2024-04-18_59a5eb6ef8a2ce3f4da88feab58e563d_cryptolocker.exe

  • Size

    51KB

  • MD5

    59a5eb6ef8a2ce3f4da88feab58e563d

  • SHA1

    c09a037d7e785a6e1d7d26d8ec1792bbf48f80ed

  • SHA256

    b378d9cb56f4828ae28ac53603a8541346510e1484dc2f36abef2641f7487678

  • SHA512

    df8afcec514cb6d134593f2ecb7fa766ba7021eaf258ee1cee7d8f648ba631ff99b7504d2e4395b1eb0e5046b1cbdd14a3bd1299985aef80919119367d705cdd

  • SSDEEP

    768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOL:z6QFElP6n+gKmddpMOtEvwDpj31iL

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 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).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-18_59a5eb6ef8a2ce3f4da88feab58e563d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-18_59a5eb6ef8a2ce3f4da88feab58e563d_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1140

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    51KB

    MD5

    3c8884b0826efa8171d4019908df8390

    SHA1

    d83463e04cc71bd6ac5439e5427f63ed9c5f6f3c

    SHA256

    502fc5d69ee7874692a83b71e4cb4992dc21262e36cba2dfeef68dd2d7c8a9ac

    SHA512

    53ae411c9493dbf0d7daf966252f50df8565c86474cd40d0d754e19dfcdc8bf2062e8080bf933959bdc3a7f6210727237c6800cc064c1b8d58178a70e2202796

  • memory/1140-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1140-18-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/1140-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1140-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2224-1-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2224-0-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2224-2-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB

  • memory/2224-4-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2224-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB