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Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    13/06/2024, 00:59

General

  • Target

    2024-06-13_fa940e66ad9a302fd6281d2e1082b5d1_cryptolocker.exe

  • Size

    44KB

  • MD5

    fa940e66ad9a302fd6281d2e1082b5d1

  • SHA1

    d6ea3e91dcd073e66ee40f97b6de536bd667e5a4

  • SHA256

    a15c401ff90e5afdf2df2197b2c73e4e6e1e1311199980cfe4e18dca1ad40c14

  • SHA512

    f96e61a3c2b7d94589a7fcd977eb6a07e8a13610b3d818844f48d5f1557a68b9cc946f50e0c89654ec28e29b0f42d88bf84c6987c21ca6924e2118bbeb8d7022

  • SSDEEP

    768:nf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGWXOQ69zbjlAAE:f1KhxqwtdgI2MyzNORQtOflIwoHNV2Xq

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\2024-06-13_fa940e66ad9a302fd6281d2e1082b5d1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_fa940e66ad9a302fd6281d2e1082b5d1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    e71b405fcef153af401119ebc9fd58b8

    SHA1

    eb743ef329a2a89d7e4e9a5db6e348d99faa402d

    SHA256

    1e45ae1938c5f3cffe357550995d90d07809badb2dbbbf4f101e9f165011e0c9

    SHA512

    dea4724014533f7a0e93c879ab2eff8d3b828c4751c38605314f2d0176438b9f88446d5c729d30ef7453119a10cc510ad2ce274b16f06714dfdcc73f8140cf76

  • memory/2780-23-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/3008-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB

  • memory/3008-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/3008-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB