Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 21:40

General

  • Target

    2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe

  • Size

    91KB

  • MD5

    bd4d9f46cb9b087e24b4e8c8760426ce

  • SHA1

    c2eaf98e5717e341f3cc6af4b25275524d1d4a20

  • SHA256

    54ac269031d5b61fc5706b847b9796d1de4985612d8b48dbd52def06c5651d54

  • SHA512

    0dde13fe86820c424d78bb385ea3eea815432f610a8f37877c564ca4db243da5e0f01df93a4312a3d8a8d5bd4afd1c92d26045184188c57bde7df3b373e1ecea

  • SSDEEP

    1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/8r:n6a+1SEOtEvwDpjYYvQd2PX

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\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1988

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          91KB

          MD5

          be1c400b8603fc77dacd656ecf03673c

          SHA1

          5a2e4ab51f30b32543d7fdc2f72097fc9ac57be5

          SHA256

          21e0dc47e7dc2a81432d7a85b98568884337f1796548a48e348510cb8e6bf80d

          SHA512

          4e365d65f4d3349054fbcf6bb788277085dadb8491c915309f258e848495ae1cf653efcf40dac21bb02f9169bfb02af06cdfea1e0fb55cc205fc3f9ced75ea08

        • memory/1988-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1988-18-0x0000000000210000-0x0000000000216000-memory.dmp

          Filesize

          24KB

        • memory/1988-25-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2968-8-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2968-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2968-1-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/2968-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2968-14-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB