MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains numerous links, many pointing to redirectors and a link farm, indicating a social engineering attempt. The heuristic 'SE_BROWSER_INSTALL_LURE' strongly suggests the document is designed to trick users into installing malicious software or divulging credentials by impersonating a necessary browser component. The primary redirector URL is https://ttraff.ru/pify?keyword=practice+it+answers+bjp4+self-+check, which is also flagged as a malicious redirector.
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.ru/pify?keyword=practice+it+answers+bjp4+self-+check In PDF document text
- http://files.cdpirelandnetwork.net/uploads/1/3/1/4/131409158/9bdd2510a97230.pdfIn PDF document text
- http://files.kmzafm.com/uploads/1/3/1/8/131856543/35708.pdfIn PDF document text
- http://files.alcmadison.org/uploads/1/3/1/4/131407102/1884039.pdfIn PDF document text
- http://files.gertybrown.co.nz/uploads/1/3/1/8/131856146/69f4b.pdfIn PDF document text
- http://files.lionsclubofharrison.com/uploads/1/3/1/4/131414134/6256110.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/1/0433/9892/2403/files/maduzefedejim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1617/4237/files/harry_fucks_hermione.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3461/5706/files/rebudotonetexipes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1321/8199/files/xufapabobo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8685/5840/files/xanefuxez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2742/9533/files/dream_league_soccer_2016_logos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6402/5493/files/lulitetirowupifexevud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14192803693.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7130/5883/files/3059828581.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5656/9249/files/51377580351.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3988/1376/files/4125795931.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_off000059b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59B4 | 5596 bytes |
SHA-256: b905e7a8ff6d6e38e7230fcb95b9a1686b9dc474b10eb128f748beb90ae25bd9 |
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font_01_sfnt_off00006cd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CD1 | 11664 bytes |
SHA-256: 2d555d090475c548c94cea324227db1d906e0d0808c0313696f30b1b5254f69a |
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