Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09/06/2024, 23:48

General

  • Target

    2024-06-09_e611367f1e6224e9429f28b8d866cdcd_cryptolocker.exe

  • Size

    40KB

  • MD5

    e611367f1e6224e9429f28b8d866cdcd

  • SHA1

    2ff5fa462a566f9c9ef3452862a35859ab735d3e

  • SHA256

    cf3ab062daf52a95f278f20fc4a6f46326640d6cd0afde348fe5a608526230e3

  • SHA512

    cc0ad26e111c46645bc6a6f9529b0bf6e95ca3430e509197c60f8093c1a8422dba0282de8bf30eae7d32e389cfba0c04e4e085c953b22746a0f1224a51cad448

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBk:qDdFJy3QMOtEvwDpjjWMl7Tdu

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\2024-06-09_e611367f1e6224e9429f28b8d866cdcd_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_e611367f1e6224e9429f28b8d866cdcd_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1536

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          40KB

          MD5

          8e0feb6ef1d3faa0b0e2832e7e3314df

          SHA1

          a9e052696f9cf6339f7b0842bb82732d3a14e56b

          SHA256

          a8327d530cc8d6f8509023e53f1bcb538c7c3045f8f38e4ec1a1e29b7d06c22d

          SHA512

          31dc60fe68824a10e1f7d5edcd94e4266f8f37b51021be1805f0bc8fac1f617f010c5d1bf5c4ba8b559f75a9578515e511a5ed7126392b35d073540e7c9e38bb

        • memory/1536-26-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1536-19-0x0000000000270000-0x0000000000276000-memory.dmp

          Filesize

          24KB

        • memory/1536-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1536-27-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2072-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2072-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/2072-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

          Filesize

          24KB

        • memory/2072-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/2072-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB