MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=examkrackers+10th+edition+pdf+download+reddit'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into downloading potentially malicious content. The presence of numerous other external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic to attract victims. The ML classifier also 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.ru/pify?keyword=examkrackers+10th+edition+pdf+download+reddit In PDF document text
- http://xigoreg.rintheyordle.com/uploads/1/3/1/0/131070420/xexomuputakuj.pdfIn PDF document text
- http://files.andrewkinschereptportfolio.com/uploads/1/3/0/7/130775942/2844323.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/1/0437/3735/0309/files/fotigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0702/5056/files/29564332569.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4625/6295/files/batepugesosukanonapomiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9345/1159/files/8370775362.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6482/6783/files/68463209157.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6075/6641/files/schneider_switches_catalogue_malaysia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9060/8285/files/mipizotejuni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7586/1656/files/perexus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8759/2608/files/jebato.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1942/6198/files/bonizimopuvosisawanuxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6517/0334/files/autoecologia_y_sinecologia_pdf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1501/8392/files/google_chrome_web_to.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/2463/3243/files/html_to_generator_c_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3413/1104/files/encyclopdie_des_desserts_gratuit.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_off0000c262.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC262 | 5768 bytes |
SHA-256: e30dd6e9434422d2d8069d8cc91697ee4a946c4719acbef1e1b140888f581656 |
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font_01_sfnt_off0000d5ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5FF | 13732 bytes |
SHA-256: 1ee92202448925bdade1b6d0d5118c6bb3c5aef29ad2efce87da8ef0dcab3b1a |
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