MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains a mass of external links, many of which point to a redirector service. The primary malicious link, 'https://ttraff.cc/pify?keyword=upsc+mains+sample+answer+sheet+pdf', is presented as a download lure. The document body, though heavily obfuscated, contains this malicious URL and other benign-looking URLs hosted on Shopify, likely to appear legitimate. The presence of a visual download button further supports the lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=upsc+mains+sample+answer+sheet+pdf In PDF document text
- http://files.enosexecutivepainting.com/uploads/1/3/1/6/131606262/2178078.pdfIn PDF document text
- http://files.sincerelyemma.com/uploads/1/3/1/4/131453917/f6e3bb.pdfIn PDF document text
- http://files.theresajatko.com/uploads/1/3/1/4/131438245/1594793.pdfIn PDF document text
- http://kubimire.shonscience.com/uploads/1/3/1/4/131453526/judinitorolojun-zesusekuzivavuj.pdfIn PDF document text
- http://lazes.decaturpi.org/uploads/1/3/1/3/131379730/wavoze_midavuxelaxebod_bumoxuj.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/1/0432/6031/3763/files/an_historical_survey_of_the_old_testament.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2763/5096/files/civil_engineering_building_drawing_software_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/4293/3657/files/public_relations_journal_articles.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/9224/1560/files/enterobacteriaceae_identification.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0781/1482/files/mabisiwolevoge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2619/4330/files/sanctified_bloodmage_robe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2458/7672/files/11633755141.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1787/1255/files/tozifenavo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4087/4408/files/27641628416.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8630/6710/files/wopaxepedugajo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8289/8840/files/73_and_74_amendment_in_telugu.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_off00005bba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BBA | 5476 bytes |
SHA-256: 37865785912f2746dbacc5593724aac47e6142141f0f88fdf3b1d165ac67d6b0 |
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font_01_sfnt_off00006e35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E35 | 10032 bytes |
SHA-256: 2491d63f0568efc667719771f00a245053f3d8ae5133e0ceb45a31dc85f0475d |
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