MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF is flagged as malicious by an ML classifier and contains heuristics indicating it is a fake download lure. The document body and embedded links point to URLs designed to trick users into downloading files, such as solution manuals, which is a common tactic for distributing malware. The primary malicious URL identified is http://uncpbisdegree.com/download3.php?q=solution-manual-fluid-mechanics-fifth-edition.pdf.
Machine Learning
- Nyx PDF Classifier malicious score 0.9395
Heuristics 5
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Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOADThe ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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Embedded URL info EMBEDDED_URLOne 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://uncpbisdegree.com/download3.php?q=solution-manual-fluid-mechanics-fifth-edition.pdf
- http://uncpbisdegree.com/download4.php?q=solution-manual-fluid-mechanics-fifth-edition.pdf
- http://www.livingfoodslindaloo.com/solution-manual-for-fundamentals-of-biostatistics.pdf
- http://adamdorfman.com/honda-mtx-125-service-manual.pdf
- http://coltan-environmental.org/2016/01/31/materials-science-and-engineering-an-introduction-callister-8th-edition-solutions-manual/
- http://burnscamp.org.uk/2/9/mk2-v6-mondeo-service-manual.pdf
- http://www.colegiodeingenierosguatemala.org/
- https://subscribe.hearstmags.com/
- http://sovietbooks.in/
- http://www.powerclean2000.com/
- https://www.andmp.com/p/concepts-of-physics-by-h-c-verma.html
- http://riverside-resort.net/1/siete-secretos-del-exito-the-seven-secretes-of-success.pdf
- http://riverside-resort.net/1/the-great-gatsby-worksheet-answers.pdf
- http://riverside-resort.net/1/sony-vgn-ar730e-laptops-owners-manual.pdf
- http://riverside-resort.net/1/the-children-of-eliza-unearthed.pdf
- http://riverside-resort.net/1/the-universe-in-rearview-mirror-how-hidden-symmetries-shape-reality-dave-goldberg.pdf
- http://riverside-resort.net/1/silencio-ruido-quiet-loud.pdf
- http://riverside-resort.net/1/transport-phenomena-bird-solution-manual.pdf
- http://riverside-resort.net/1/treasures-of-the-british-museum.pdf
- http://riverside-resort.net/1/stemscopes-earth-science-answer-keys.pdf
- http://riverside-resort.net/1/time-for-kids-answers-keys.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://care.lg.com/the_bedford_reader_12th_edition_download_free_ebooks_about_the_bedford_reader_12th_edition_or_read_online_viewer_searc.pdf
- https://www.amazon.com/Manufacturing-Engineering-Technology-Serope-Kalpakjian/dp/0133128741
- https://www.amazon.com/Engineering-Transportation-Books/b?ie=UTF8&node=173507
- https://www.amazon.com/Engineering-Professional-Technical-Books/b?ie=UTF8&node=173515
- http://www.chegg.com/homework-help/definitions/heat-transfer-5
- https://www.sciencedirect.com/science/books/all/full-text-access
- https://www.scribd.com/document/367004515/Advanced-Trauma-Life-Support-ATLS-Student-Course-Manual-2018
- http://www.ovid.com/site/catalog/books/index.jsp
- https://www.osha.gov/dts/osta/otm/new_noise/
- http://www.academia.edu/23962214/Marketing.Management.13th.Edition.Philip.Kotler
- http://catalogue.uci.edu/thehenrysamuelischoolofengineering/
- https://www.psychologytoday.com/us/blog/inside-the-box/201402/thinking-outside-the-box-misguided-idea
- https://www.amazon.com/books-used-books-textbooks/b?node=283155
- https://en.wikipedia.org/wiki/Toyota_Celsior
- https://www.nrc.gov/reading-rm/doc-collections/cfr/part050/full-text.html
- http://oll.libertyfund.org/titles/bacon-the-advancement-of-learning
- http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409
- http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409
- https://go.microsoft.com/fwlink/?linkid=868922
- http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409
- http://go.microsoft.com/fwlink/?LinkID=617297
- https://en.wikipedia.org/wiki/Milling_
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004d22.bin05446e860f1b797fd926fa3953298c1f8966841732d17b449d4cfcd99d3b29e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D22 | 10352 bytes |
font_01_sfnt_off00006e21.bin9f7a61e741d472b3b67e598da427a9e298bc7a8a2599f108d2f68fa903d3eb2e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E21 | 6768 bytes |
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