MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1204.001 Malicious Link
T1566.002 Spearphishing Attachment
The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=puffin+browser+pro+apk+uptodown'. The document body also contains this URL and numerous other links to PDF files hosted on Shopify, suggesting a link farm designed to improve search engine ranking for potentially malicious downloads. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document's content is a social-engineering tactic to trick users into installing unwanted software, likely to facilitate further compromise.
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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=puffin+browser+pro+apk+uptodown In PDF document text
- http://files.fortyhours.com/uploads/1/3/1/6/131606819/jufezef_doradumakog.pdfIn PDF document text
- http://tuniwobe.ivoryoungequine.com/uploads/1/3/1/6/131607163/kifetilijor.pdfIn PDF document text
- http://papijidef.rrgmarketing.com/uploads/1/3/1/6/131637254/6400751.pdfIn PDF document text
- http://wefaw.coipuganda.org/uploads/1/3/1/4/131409474/251b8ddca031bd9.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/1/0435/5093/3156/files/57680709238.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8868/3932/files/fufabopujakofolozelesagu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1868/9432/files/niterunupeniwopozaguri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3755/5868/files/79244094786.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6276/9302/files/76493726116.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2276/8538/files/wekesulozumetemaborit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4650/9467/files/21515600577.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1978/6645/files/conversation_lessons_esl.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4596/7256/files/36681855911.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9433/4870/files/scrum_guide.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
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006378.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6378 | 5300 bytes |
SHA-256: 1dbbd71f13a3a9b0d0fd58a571be460a5209a2e467aaaca1567726b77680b0a3 |
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font_01_sfnt_off0000758c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x758C | 3544 bytes |
SHA-256: 1f339cd2415ccd6c83a7e656049dd6befbed1c7e231ce396cb49477f9cb4fcb1 |
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font_02_sfnt_off00008403.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8403 | 10536 bytes |
SHA-256: 7be1a36eb4f8abffb537224c6ed8fa232567226674cfb8dc770f4dc9dde988fa |
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font_03_sfnt_off0000a7fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA7FE | 16204 bytes |
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501 |
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