Malicious PDF — malware analysis report

Static analysis result for SHA-256 15b3373a5ebf2b6c…

MALICIOUS

PDF

27.5 KB Created: 2019-05-03 05:33:43 +01:00 Authoring application: mPDF 5.7
MD5: de86fc9ef4d97d3202e519d7d38d262d SHA-1: 938ff555c4eabcea206d4046d1cc37472953f3e8 SHA-256: 15b3373a5ebf2b6c03488157dc8c5cfbb9245d0c8a0c69217d7a222b48b3ee78
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs pointing to external PDF files, indicative of a link farm or SEO poisoning attack. The ML classifier also flagged this sample as malicious. While no scripts were extracted, the sheer volume of links and the heuristic firing suggest an attempt to manipulate search engine results or drive traffic to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

Heuristics 2

  • 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.
  • 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://cmeinasaoo.duckdns.org/7b22b24b23/The-Gentle-Art-of-Swedish-Death-Cleaning-How-to-Free-Yourself-and-your-Family-from-a-Lifetime-of-Clutter-by-Margareta-Magnusson.pdf
    • http://cmeinasaoo.duckdns.org/1b20b27b23b28b29b29/The-Minimalist-Book-To-Organizing-Your-House-And-Downsizing-Your-Life-Simplify-Your-Lifestyle-Creating-Clutter-Free-Habits-And-A-Stress-Free-Enviroment-For-A-Simple-Living-To-Become-A-Happier-Person-by-Clarice-Rousseau.pdf
    • http://cmeinasaoo.duckdns.org/8b26b24b29b21b24/Dreaming-of-Iceland-The-Lure-of-a-Family-Legend-by-Sally-Magnusson.pdf
    • http://cmeinasaoo.duckdns.org/6b27b24b22b26b29/DSK-The-Most-Perfect-Target-La-Cible-La-Plus-Parfaite---Pushing-The-Cleaning-Cart-A-Case-of-Imperfect-Equals---A-Free-DSK-Now-and-For-Ever-DSK-The-Comeback-Dude-of-Thunder-by-Roland-F-Laporte.pdf
    • http://cmeinasaoo.duckdns.org/4b29b26b25b27b24/Swedish-Death-Metal-by-Daniel-Ekeroth.pdf
    • http://cmeinasaoo.duckdns.org/1b20b24b25b24b26/The-Joy-of-less---Get-Clutter-Free-for-Life-Volume-4---A-post-purge-manifesto-for-tidying-up-de-cluttering-and-organizing-without-pulling-your-hair-out-by-Cary-David-Richards.pdf
    • http://cmeinasaoo.duckdns.org/4b23b21b29b26b23/Gentle-Rogue-Malory-Family-3-by-Johanna-Lindsey.pdf
    • http://cmeinasaoo.duckdns.org/4b24b22b22b21/Gentle-Rogue-Malory-Anderson-Family-3-by-Johanna-Lindsey.pdf
    • http://cmeinasaoo.duckdns.org/4b26b26b28b28b21/Gentle-Rogue-Malory-Family-Book-3-by-Johanna-Lindsey.pdf
    • http://cmeinasaoo.duckdns.org/4b28b29b20b20b20/Death-of-a-Gentle-Lady-Hamish-Macbeth-24-by-M-C-Beaton.pdf
    • http://cmeinasaoo.duckdns.org/3b27b20b24b28b20/Death-of-a-Gentle-Lady-Hamish-Macbeth-23-by-M-C-Beaton.pdf
    • http://cmeinasaoo.duckdns.org/3b25b24b21b24b20/Free-to-Be-You-and-Me-and-Free-to-Be-a-Family-by-Marlo-Thomas.pdf
    • http://cmeinasaoo.duckdns.org/3b22b29b20b28b23/Naturally-Thin-Unleash-Your-SkinnyGirl-and-Free-Yourself-from-a-Lifetime-of-Dieting-by-Bethenny-Frankel.pdf
    • http://cmeinasaoo.duckdns.org/2b20b21b24b29/Twice-in-a-Lifetime-Bodine-Family-1-by-Marta-Perry.pdf
    • http://cmeinasaoo.duckdns.org/2b25b22b29b29b24/The-Gentle-Art-of-Newborn-Family-Care-A-Guide-for-Postpartum-Doulas-and-Caregivers-by-Salle-Webber.pdf
    • http://cmeinasaoo.duckdns.org/7b28b25b23b27b29/Raising-A-G-Rated-Family-in-an-X-Rated-World-A-Survival-Guide-from-a-Family-of-Nine-With-Free-Hug-Card-by-Brent-Hatch.pdf
    • http://cmeinasaoo.duckdns.org/1b23b23b21b22b22/The-Gentle-Giant-of-Dynamite-Hill-The-Untold-Story-of-Arthur-Shores-and-His-Family-s-Fight-for-Civil-Rights-by-Helen-Shores-Lee.pdf
    • http://cmeinasaoo.duckdns.org/1b21b27b24b24b26b23/Dairy-Free-Death-Auntie-Clem-s-Bakery-2-by-P-D-Workman.pdf
    • http://cmeinasaoo.duckdns.org/5b20b23b22b24b29/Death-on-the-Family-Tree-Family-Tree-1-by-Patricia-Sprinkle.pdf
    • http://cmeinasaoo.duckdns.org/2b25b24b24b26b27/Free-Soil-Free-Labor-Free-Men-The-Ideology-of-the-Republican-Party-Before-the-Civil-War-by-Eric-Foner.pdf

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