Analysis

  • max time kernel
    93s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 3 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⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2896
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:4956

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

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

          Filesize

          261B

          MD5

          11bed1c06d8f4680de5154405be20365

          SHA1

          9c3095f1aa0b02924c23592d1e86673bb0081ca1

          SHA256

          bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

          SHA512

          050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

        • memory/2896-0-0x0000000002350000-0x0000000002356000-memory.dmp

          Filesize

          24KB

        • memory/2896-8-0x0000000002350000-0x0000000002356000-memory.dmp

          Filesize

          24KB

        • memory/2896-1-0x00000000023C0000-0x00000000023C6000-memory.dmp

          Filesize

          24KB

        • memory/4956-17-0x0000000003010000-0x0000000003016000-memory.dmp

          Filesize

          24KB

        • memory/4956-23-0x0000000002D60000-0x0000000002D66000-memory.dmp

          Filesize

          24KB