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 pointing to Shopify domains, which is characteristic of SEO link farm abuse. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'nutritional status' and 'cheat sheet', suggesting a lure to disguise the malicious intent. The ML classifier 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/wb?keyword=testing%20nutritional%20status%20the%20ultimate%20cheat%20sheet%20pdf In PDF document text
- http://files.kasubaworks.com/uploads/1/3/1/4/131483445/mewudenizuguref.pdfIn PDF document text
- http://files.harrisonskbb.co.uk/uploads/1/3/1/8/131856389/rexixakipur-wesetukijeramok-sonakexafopapa.pdfIn PDF document text
- http://files.meghanshope.org/uploads/1/3/2/7/132740804/zizikufelozefesaf.pdfIn PDF document text
- http://files.omanroadshow.com/uploads/1/3/0/7/130776841/kasulojemuv.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/1/0430/9418/0001/files/90748577696.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1742/1479/files/78902281890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4639/5304/files/28174860213.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21511039237.pdfIn PDF document text
- https://nifafulawad.files.wordpress.com/2020/07/befefitinexone.pdfIn PDF document text
- https://beromixeze.files.wordpress.com/2020/06/vibinafimawapove.pdfIn PDF document text
- https://xatemigifema20247951.files.wordpress.com/2020/07/dawaborutepukokadebefo.pdfIn PDF document text
- https://filelexasebu.files.wordpress.com/2020/07/78949822692.pdfIn PDF document text
- https://bapafagis.files.wordpress.com/2020/07/7550795262.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0576/2974/files/47653259995.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74133662670.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8104/7965/files/32525315170.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0161/8330/files/96379466738.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7079/9510/files/viter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4894/4295/files/29497158064.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3197/0460/files/72680240159.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9900/4831/files/dofiladevulemer.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_off000077b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77B6 | 5400 bytes |
SHA-256: fcd4ab7a82d096f73247b73ff6fff9cec33b47e8afee6a04ac2c660b49430cab |
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font_01_sfnt_off000089d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89D6 | 10392 bytes |
SHA-256: 030b1286db5df4675399565cb2eff1dca6a3ab634a311c3a015710af9c1ad5ff |
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