MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with many links pointing to Shopify domains, likely to improve search engine ranking for malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body contains the URL https://ttraff.cc/pify?keyword=learn+basic+spanish+language+pdf, indicating the user is likely being lured to a malicious site under the guise of downloading a Spanish language PDF.
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.cc/pify?keyword=learn+basic+spanish+language+pdf In PDF document text
- http://files.helptakeaction.com/uploads/1/3/2/6/132681938/3009213.pdfIn PDF document text
- http://files.prometheanpress.com/uploads/1/3/0/7/130776120/66b512d3b3937d5.pdfIn PDF document text
- http://pikino.well-builtcity.com/uploads/1/3/1/3/131380042/bivaruwizusiliniduma.pdfIn PDF document text
- http://files.soundmethoddjservice.com/uploads/1/3/1/3/131384171/3420729.pdfIn PDF document text
- http://kunefa.cleanwindows4you.com/uploads/1/3/2/3/132303189/tukefabug.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/1/0430/8857/6661/files/tigeradatux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7730/4484/files/24387572630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81159011373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4455/2354/files/botany_for_degree_students_algae.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4071/9516/files/doxiwebimosokuruximitos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5372/7387/files/off_balance_sheet_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3404/9703/files/18937749178.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0204/4316/files/gorusamib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3936/7061/files/cool_math_games_spider_solitaire.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2189/1746/files/hill_climb_racing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6798/8376/files/a_first_course_in_differential_equations.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3590/1602/files/dynamic_array_c.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_off00006c14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C14 | 5496 bytes |
SHA-256: a10d931665d425f47f1c53ceaa265f7ef9bcce3d1013c9644b89fb279963442f |
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font_01_sfnt_off00007ebd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EBD | 10080 bytes |
SHA-256: 3dece90a10799e8f1a05106c079d9773b80a3e6400d2310aec4a1571129b3174 |
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