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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    28/09/2024, 07:35

General

  • Target

    2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe

  • Size

    72KB

  • MD5

    3d6b9d50fcf3675de61241d5184f6e2f

  • SHA1

    0d7d5893ecdcc9bdea82eaed7e725c5fdf7a8152

  • SHA256

    e428891b1a094a92bdf0ec7970545f1f2ab39d1a46409f15b386149457b3b25b

  • SHA512

    c9013fa7bb7b821b200311bc84d15bf447201e531ee27a996062dfff1932b0aa9bf6ae12e50fb051f071af56e442bb94b15c28e543263fed63a67b91fa8584d9

  • SSDEEP

    1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9K:C4Q2c94OtEvwDpj4H8zv

Score
7/10

Malware Config

Signatures

  • 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).

  • 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    72KB

    MD5

    bb3cda893c577b6e97376e5ae0802eba

    SHA1

    e2a687d1f73635b4468c5f01c47f48213d7535eb

    SHA256

    61d7b9fde1ff19affe5c0c78a24eec03a8117007a0a1edb8b5d405ccefd92e61

    SHA512

    f2d02c62bd635597f7ca28e484fdad224f114496ba83832e38a5fa30b8da0cd5e2b8774828b6be9cebf975b1d6100498fa53e76a888409f0bc99db1327b084f0

  • memory/2300-3-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/2300-2-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2300-1-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2300-0-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2300-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2840-26-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2840-19-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2840-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2840-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB