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Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/02/2024, 09:48

General

  • Target

    2024-02-25_a3e19957ed2f4f9e2b9acd19d6b7cd1e_cryptolocker.exe

  • Size

    41KB

  • MD5

    a3e19957ed2f4f9e2b9acd19d6b7cd1e

  • SHA1

    6a7dd2b1b554aa1540b3f9154f66200c681f41f4

  • SHA256

    d3db9ab2d831df3dba5a35de2d13eb6735027ad3277746c2468f30f63bf9706c

  • SHA512

    a6d0e7ea27ed42a896e2ed65275207824dbfcf4099e8b3f34a2f6b661fe08ba5e652dcf245cbd47c3734ae78471fa5032e208f14dc0cf119f5d07b79235c8727

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6n8E:6j+1NMOtEvwDpjrR8E

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • Detects executables built or packed with MPress PE compressor 6 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-25_a3e19957ed2f4f9e2b9acd19d6b7cd1e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-25_a3e19957ed2f4f9e2b9acd19d6b7cd1e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2384
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    dc7903af500883e64b978d66a520c039

    SHA1

    bf8c523ec018e6a8b08b590cdfeb32215db4c575

    SHA256

    8efa28259ee5f73a8cce46906c4fadb51535773afd9a20d5b322271d205612ce

    SHA512

    9779c550d9d2a637265d99d8a189807f15ac6a072e0aef3682cc43a811f26346f0b61c7c57507ac311b6645aaafc704c4dd3581ed91185d1503444c280ecb6aa

  • memory/2384-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2384-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2384-2-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2384-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2384-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2384-14-0x0000000002740000-0x000000000274F000-memory.dmp

    Filesize

    60KB

  • memory/2964-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2964-20-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2964-19-0x00000000004A0000-0x00000000004A6000-memory.dmp

    Filesize

    24KB

  • memory/2964-27-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB