MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links to external resources, masquerading as 'keyboarding practice worksheets'. One of these links, 'https://ttraff.cc/pify?keyword=keyboarding+practice+worksheets', is identified as a malicious redirector. The document also employs a social engineering lure, prompting the user to install a browser extension or update, a common tactic for credential theft or malware installation. The ML classifier strongly indicates maliciousness.
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=keyboarding+practice+worksheets In PDF document text
- http://lenoru.peeblesfootball.com/uploads/1/3/0/7/130775732/fiwozu.pdfIn PDF document text
- http://galano.manchestercitytantricmassage.com/uploads/1/3/0/9/130969356/d779f473aa5be.pdfIn PDF document text
- http://files.millcreekbrangus.com/uploads/1/3/1/8/131856852/robatatabuvub_bemabat_fokube_wiwirurifiz.pdfIn PDF document text
- http://files.sccliteracyproject.org/uploads/1/3/2/7/132740445/navotudelevu.pdfIn PDF document text
- http://files.mainesouthmusicboosters.org/uploads/1/3/0/8/130813269/mobenipajodinen.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/1/0428/9835/8432/files/40369191557.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6193/6282/files/xipetijofixoxuvibavufub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4248/7972/files/lafalobogamepegubowad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8283/3308/files/66180688191.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/poxusulijupidokubeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7128/4135/files/xaviregomudu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4459/9958/files/example_of_simile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78394199391.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6911/1449/files/mufadatizejebaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5177/8202/files/nesedilabomebibisewoti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6037/9286/files/migetorefuzixoratufona.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_off0000b394.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB394 | 5672 bytes |
SHA-256: 3adfaa8e75c8f08e4eb36fda7d8994161779e023c4eee4a10ce98fd64ef0f23e |
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font_01_sfnt_off0000c6e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6E6 | 10388 bytes |
SHA-256: 105b4fa5da3792d903f2bb7836f8052ad2963a8b43a670b55565bb0720184a6a |
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