MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF is flagged as malicious due to its use of redirector links and a large number of external PDF links, characteristic of SEO link farms or phishing lures. The document body, though heavily obfuscated, suggests a "Minerals and rocks study guide" theme, likely a pretext for the malicious links. The primary malicious URL identified is https://ttraff.ru/pify?keyword=minerals+and+rocks+study+guide, which is also flagged as a known malicious redirector.
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=minerals+and+rocks+study+guide In PDF document text
- http://files.ryanleekk.com/uploads/1/3/1/3/131398573/bivaj-piwuj-foganun.pdfIn PDF document text
- http://files.match-gems.com/uploads/1/3/0/9/130969243/waruxe-gibotusupuwe-viputefetapaj-walugogigebomev.pdfIn PDF document text
- http://files.bjspoultry.com/uploads/1/3/0/7/130740521/8996003.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/1/0430/8808/5143/files/52767458511.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4365/1735/files/25737704982.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9166/5830/files/pogusisarezitomaleforipi.pdfIn PDF document text
- https://patibubu.files.wordpress.com/2020/06/sipaxanapezoxonapofuf.pdfIn PDF document text
- https://xodavosubis.files.wordpress.com/2020/06/16634959316.pdfIn PDF document text
- https://forivugovov.files.wordpress.com/2020/07/16601594894.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5197/3789/files/panizezokixokulutoki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2356/4957/files/70709255362.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3192/8740/files/46518000737.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1243/1776/files/66513292259.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1411/1903/files/lakiguguvosubuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52135332303.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5175/2344/files/kokizesovatiwovoxin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6337/7048/files/24013837996.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_off00007903.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7903 | 5160 bytes |
SHA-256: bbc4a2d196e61bee12c4e051cc138e09f8998b85e28649c0c23ed51ceecb0665 |
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font_01_sfnt_off00008aa5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8AA5 | 10108 bytes |
SHA-256: f3978a9d8e127483c1f46b4daaef8a7717a2fff099cf346416e09b42a0bfa844 |
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