MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=vernier+caliper+pdf+sinhala. The document body, though heavily obfuscated, contains this same URL, suggesting the intent is to redirect users to malicious content or phishing pages. The large number of Shopify links suggests a link farm or SEO manipulation tactic to increase visibility.
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=vernier+caliper+pdf+sinhala In PDF document text
- http://files.ellismedlibrary.org/uploads/1/3/0/7/130739288/lanif.pdfIn PDF document text
- http://files.chinatownbranch.com/uploads/1/3/1/4/131406286/3865872.pdfIn PDF document text
- http://files.myhealthplanz.com/uploads/1/3/1/3/131379868/2599184.pdfIn PDF document text
- http://mimitevuw.cfdparamedic.com/uploads/1/3/2/8/132814930/504dee8e1.pdfIn PDF document text
- http://files.francislewissocialstudies.com/uploads/1/3/2/7/132710627/721d83ae143281.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0428/5127/0815/files/both_either_neither_test.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2175/4787/files/64822452902.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5448/1058/files/31646592151.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8693/0329/files/punupofu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8316/0983/files/baghban_book_in_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0279/7986/files/14941191655.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9403/9975/files/comcast_tv_schedule.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2843/8427/files/kubar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3683/4981/files/27842564612.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/57671111188.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3342/0195/files/folumerunufexirapaz.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007af6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AF6 | 4804 bytes |
SHA-256: 5b71b42a647b91f58a4435c8a28c5b5dffa6f636fffe5e95a894afad7322126a |
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font_01_sfnt_off00008b32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B32 | 10376 bytes |
SHA-256: 29c96868c2c7325e22f51509daf4fbf339097c1ba85afc92014adba6d2f4f9c4 |
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font_02_sfnt_off0000ae90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE90 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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