Analysis

  • max time kernel
    119s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 04:47

General

  • Target

    2024-06-02_e43ba61d976c332eb7b89c61e81aaa0d_cryptolocker.exe

  • Size

    34KB

  • MD5

    e43ba61d976c332eb7b89c61e81aaa0d

  • SHA1

    c76e97bdbb4b05bae41257c384e955c6fb080371

  • SHA256

    340f99b70a640549c7d022ab222d7d4d1b49dfb4597ac26fa97aaa309a3a7038

  • SHA512

    a8079247798f30ce5d09eec94f61febff27bf61dbe9f3ba0631e6019b88a05dbaeaf537c1272db71206ee4ef3139bc853635c49dc64f41ca3cd5c44872b22b26

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jm+:bxNrC7kYo1Fxf2rYPv

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-02_e43ba61d976c332eb7b89c61e81aaa0d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_e43ba61d976c332eb7b89c61e81aaa0d_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1872
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2880

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          34KB

          MD5

          f8527a505992a443719422618426cb3b

          SHA1

          087599375d4d3c4cbe135c48f83e6fc31228e5a2

          SHA256

          ffc9014cd2bbc2aa252ae46f65a1e820664fd2d64d0aa8185a414863354ad5e0

          SHA512

          0624eee51738b318f35104059068af81afc912bfe0af491013bdb6ba7464c1a0ff55e746cd16b10136fd7cd38607f0a9a0b6b1ff5d81bfb9581f391db7372636

        • memory/1872-0-0x0000000000380000-0x0000000000386000-memory.dmp

          Filesize

          24KB

        • memory/1872-1-0x0000000000390000-0x0000000000396000-memory.dmp

          Filesize

          24KB

        • memory/1872-8-0x0000000000380000-0x0000000000386000-memory.dmp

          Filesize

          24KB

        • memory/2880-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

          Filesize

          24KB

        • memory/2880-22-0x00000000002A0000-0x00000000002A6000-memory.dmp

          Filesize

          24KB