MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to "strength of materials formulas pdf". The presence of numerous Shopify links, many of which are benign, alongside the malicious redirector, indicates a link farm strategy. The ML classifier strongly flagged this PDF as malicious.
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.com/pify?keyword=strength+of+materials+important+formulas+pdf In PDF document text
- http://wopaxus.theresalovesyou.com/uploads/1/3/1/1/131163590/kerudezaxerusu.pdfIn PDF document text
- http://files.sweetanniescreations.com/uploads/1/3/1/3/131382841/dazilagelagaz-giweweko-xezepupeg.pdfIn PDF document text
- http://files.geographywithmrsc.com/uploads/1/3/2/6/132696029/4329541.pdfIn PDF document text
- http://files.allcaptainsmobilemarine.com/uploads/1/3/0/7/130775448/5570762.pdfIn PDF document text
- http://files.christiestimber.com/uploads/1/3/2/3/132302815/a80bec9c772bc.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/1/0439/4654/1211/files/bass_guitar_first_lesson.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5625/9491/files/mesezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7217/3733/files/weraririfigup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3152/6557/files/60637468839.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4133/9045/files/89654686419.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3152232763.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9651/3448/files/1635953770.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6470/4662/files/curry_blake_healing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0708/0605/files/41889473156.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0300/9430/files/25272221063.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2807/7992/files/63344847278.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3437/7372/files/lesson_plan_in_english_literature.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5943/5928/files/82828052303.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5124/5987/files/segawulajax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0452/6263/5168/files/piscicultura_tilapia.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_off00008774.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8774 | 5560 bytes |
SHA-256: f3257b944087286dc724fc39246c95f1bfdb8f7538210cfdafd8d2502523f890 |
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font_01_sfnt_off00009a2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A2E | 10264 bytes |
SHA-256: 41544cd4cb71d7b0ff1a24b4c756db29bdcde4f6df4a699feab6eb7e94d1b109 |
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