MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Capitalismo para principiantes pdf gratis' and the malicious URL, suggesting a lure to download a free ebook which instead leads to a malicious site. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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 https://ttraff.ru/pify?keyword=capitalismo+para+principiantes+pdf+gratis In PDF document text
- http://files.briannalind.com/uploads/1/3/1/4/131413718/basugazemasa_ninapulewidu.pdfIn PDF document text
- http://files.adachiclinic.org/uploads/1/3/1/3/131379236/vesodamejuwefow.pdfIn PDF document text
- http://files.sellafurniture.com/uploads/1/3/1/3/131380445/f0b1c8d235a374e.pdfIn PDF document text
- http://files.renewedeachmorning.com/uploads/1/3/0/7/130739651/fogibomifefuzapij.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5460/4198/files/kuvojulewufeneravowesubi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7317/4693/files/learn_japanese_language_in_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4166/8775/files/75377285066.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6222/2232/files/kekozurofadeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0073/3596/files/14936797136.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9430/2117/files/92043871647.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6183/7981/files/fofosupujovanafiwileniwud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0253/5840/files/vedapelunoxinobopaxurusa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0436/2906/files/jufisukelavutuguvaluxuri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6068/1109/files/letter_of_intent_for_internship.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58014629257.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9313/8333/files/29460318000.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000782a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x782A | 5380 bytes |
SHA-256: 698c8e5411165e724a709b28b2bb8874653ea4596ca14bc332f9eb59d6410e73 |
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font_01_sfnt_off00008a5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A5B | 11944 bytes |
SHA-256: 72d43b8edd899e6a21eab5ad3984ed08386e3956a8d78a59545c230d1c4a753c |
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font_02_sfnt_off0000b16c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB16C | 16292 bytes |
SHA-256: a2feab87ef65584a62b4d086a834922187f60c9a5d72718656d91ee12ab69c3f |
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