Malicious PDF — malware analysis report

Static analysis result for SHA-256 368d10f2418cfd1d…

MALICIOUS

PDF

21.5 KB Created: 2019-04-30 04:09:47 +01:00 Authoring application: mPDF 5.7 First seen: 2021-06-04
MD5: 4915750bf8aa8ad106240db857b6c405 SHA-1: c01d0c5b845c3cceab917c61514b999c5074c87a SHA-256: 368d10f2418cfd1dc3eb1b5771c951f30362d95ff162d31984e59a981856070c
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, identified by the 'PDF_SEO_LINK_FARM' heuristic. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to manipulate search engine results or direct users to potentially malicious content. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://muicuiu.dumb1.com/8a09a02a02a06a07/There-Must-Be-Magic-First-Poems-for-Children-by-Arthur-Wortmann.pdf In PDF document text
    • http://muicuiu.dumb1.com/8a09a02a03a06a01/Mark-37-Another-Architecture-Issue-37-April-May-by-Arthur-Wortmann.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a00a09a00a05a05/Collected-Poems-by-Arthur-Rimbaud.pdfIn PDF document text
    • http://muicuiu.dumb1.com/8a01a02a00a04/Mercy-Burns-Myth-and-Magic-2-by-Keri-Arthur.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a00a09a00a08a09/Season-in-Hell-Other-Poems-by-Arthur-Rimbaud.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a00a09a00a05a06/Selected-Poems-and-Letters-by-Arthur-Rimbaud.pdfIn PDF document text
    • http://muicuiu.dumb1.com/5a07a03a03a05a03/Do-You-Believe-in-Magic-Children-of-Merlin-1-by-Susan-Squires.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a09a05a03/Prince-of-Magic-Children-of-the-Sun-1-by-Linda-Winstead-Jones.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a01a02a05a07a05/Our-Magic-Bunk-Bed-The-Bedtime-Adventures-of-Ally-and-Arthur-by-Adam-Zollinger.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a05a08a09a03a02/Illuminations-Prose-poems-New-Directions-Paperbook-No-56-by-Arthur-Rimbaud.pdfIn PDF document text
    • http://muicuiu.dumb1.com/9a03a05a01a07a02/Fairy-Tail-Fanon---Persona-Superior-Deus-Abyss-Break-Air-God-Slayer-Magic-Amaterasu-Magic-Seals-Arbiter-Poena-Arc-of-Embodiment-Arc-of-Possession-Arc-of-Time-Atma-Atom-Breaker-Awakening-Black-Feather-Magic-Bloody-Fang-Magic-Bullet-Magic-by-Source-Wikia.pdfIn PDF document text
    • http://muicuiu.dumb1.com/4a09a08a08a08a09/The-Magic-Pocket-Selected-Poems-by-Michio-Mado.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a02a09a01a03/Parenting-with-Pets-The-Magic-of-Raising-Children-with-Animals-by-Christine-Hamer.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a01a01a08a05a07/Marvellous-Creatures-a-Children-s-Poems-Bundle-by-Mark-Kerger.pdfIn PDF document text
    • http://muicuiu.dumb1.com/6a03a04a03a09a06/Children-in-Exile-Poems-1968-1984-by-James-Fenton.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a05a01a03a03a02/A-Family-of-Poems-My-Favorite-Poetry-for-Children-by-Caroline-Kennedy.pdfIn PDF document text
    • http://muicuiu.dumb1.com/3a09a02a08a04a02/Come-Hither-A-Family-Treasury-of-Best-Loved-Rhymes-and-Poems-for-Children-by-Walter-de-la-Mare.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a01a01a04a06a09/Stories-and-Poems-for-Extremely-Intelligent-Children-of-All-Ages-by-Harold-Bloom.pdfIn PDF document text
    • http://muicuiu.dumb1.com/1a09a05a08a02a05/The-Magic-Bookshelf-A-Parents-Guide-to-Showing-Growing-Minds-the-Path-to-the-Best-Children-s-Literature-by-Janie-Jarvis.pdfIn PDF document text
    • http://muicuiu.dumb1.com/2a06a09a05a06a02/Simply-Magical-Poems-and-short-story-for-children-ages-8--11-years-by-Teresa-Joseph-Franklin.pdfIn PDF document text

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