MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, a technique often used to manipulate search engine results. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.ru/wb?keyword=lesson%20plan%20for%20maths%20class%206%20pdf%20in%20english. The document body, though partially corrupted, also contains this URL, suggesting a lure to trick users into clicking malicious links under the guise of educational content.
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/wb?keyword=lesson%20plan%20for%20maths%20class%206%20pdf%20in%20english In PDF document text
- http://files.collinsvillecrimsoncadets.com/uploads/1/3/1/6/131607062/jepuxego.pdfIn PDF document text
- http://files.365downandout.com/uploads/1/3/2/7/132710780/1407151.pdfIn PDF document text
- http://files.penandswordproductions.com/uploads/1/3/0/9/130969298/tifuneka.pdfIn PDF document text
- http://files.cdconggiaovietnamvic.org/uploads/1/3/1/0/131070911/4648145.pdfIn PDF document text
- http://files.givingissocial.com/uploads/1/3/1/8/131860125/bc5857a193781e3.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/1/0432/7673/0533/files/icy_veins_warlock_leveling.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6654/0700/files/matchbox_rocket_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0158/5570/files/xiroxowefotigolu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1970/6269/files/wexetetapiruwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5033/5384/files/oxidative_stress_thesis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1522/4996/files/fokofututemot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6073/1808/files/pejevorizimisuxipabo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9270/4408/files/tafezisozubegadawu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4964/7261/files/vivotiwavibokaxunufan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7900/7398/files/php_web_scraping.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3881/8982/files/tajepixofazu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1262/6344/files/nys_geometry_regents.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6878/3773/files/ungleichnamige_brche_addieren_und_subtrahieren_bungen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4964/7270/files/tabixulitugafumajivul.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000696e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x696E | 5664 bytes |
SHA-256: 9ea312ee07bdf15b04ba0e6f3a8d0de68ba92b7394986572b078324212df9794 |
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font_01_sfnt_off00007c8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C8E | 9936 bytes |
SHA-256: 05f65b75dc1bdf094b90a0ec92826c3f2d937e20b524e145f506f5857ec33ac6 |
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