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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    28/05/2024, 17:33

General

  • Target

    2024-05-28_bdd73ec7cc4c096c5f4fadda732cbd0b_cryptolocker.exe

  • Size

    38KB

  • MD5

    bdd73ec7cc4c096c5f4fadda732cbd0b

  • SHA1

    7551f1d8d21743d64d6837947a20f714a63259bb

  • SHA256

    604e68a3ee5bcf009897252bd0a4546203423310a32107f8782f70886b89650a

  • SHA512

    753f13981461e43f34e59a2c812da5b6f93f1051b5a4c69a9147082bcd26cfc9ea8b71017bf9345eeed5e943baa92e4372df185cf1457afc5f5547222adbad0f

  • SSDEEP

    768:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o36mzH:bc/y2lLRU6zA6qzH

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).

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-28_bdd73ec7cc4c096c5f4fadda732cbd0b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-28_bdd73ec7cc4c096c5f4fadda732cbd0b_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    f749fc33b173a4007cc245dd29b351e0

    SHA1

    61348663b8162057ce83f248c9ae0957204cd6ab

    SHA256

    bd492e6fdffce867688ad3d5dfc44b6a41ba8b456f97a7954f8857ad0493428f

    SHA512

    9223c513fbc33e60df9c708253eebde61031d52b166641cc2da3f5c94e1bf7f99696980cbee37905548480ce7d5a3a0ae231b046655c5750b740f80c46929484

  • memory/2860-23-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2924-0-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/2924-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2924-8-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB