MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector infrastructure identified as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a SEO link farm designed to lure users with search terms like 'C programming including numerical and statistical methods pdf'. This suggests a phishing or scam attempt, likely leading to further malicious content or malware download.
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=c+programming+including+numerical+and+statistical+methods+pdf In PDF document text
- http://files.scottafleming.net/uploads/1/3/1/8/131857305/4995369.pdfIn PDF document text
- http://files.crimsonsoccer.us/uploads/1/3/1/4/131407709/megupoma.pdfIn PDF document text
- http://files.countrygiftandthrift.com/uploads/1/3/0/8/130813364/xevobaxikufa.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/1/0432/1945/2063/files/10951340131.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0579/5752/files/bagapepamapok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5448/1058/files/68380996015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/deved.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9651/4461/files/18342428297.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1223/5159/files/runonujafepukubarakut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7950/7880/files/23978023846.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0909/7376/files/venezukavituboj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5531/7149/files/84515127538.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6936/5654/files/children_john_santrock.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/zoturuzer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/2033/2705/files/vitisuxavezeg.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign:
countrygiftandthrift.com
4 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004d89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D89 | 5476 bytes |
SHA-256: 1bf2e16dd6fea9163e1cf7b5e2d5421c3e17d5b79b9f6517245bca4d4dfdaeb8 |
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font_01_sfnt_off00005ff3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FF3 | 10012 bytes |
SHA-256: 5e0d518dcf12c1f5aa33772b1446a4f0dd7b5e3f0ea2b94b68f2ea0d5c9444d4 |
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font_02_sfnt_off00008272.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8272 | 16164 bytes |
SHA-256: c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e |
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