MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic indicating it links to a known malicious redirector, ttraff.com, which is part of a link farm designed to distribute malicious content. Another critical heuristic identifies it as a PDF SEO link farm, with numerous links pointing to PDFs hosted on cdn.shopify.com. The document also employs a social engineering lure, instructing the user to install a browser extension or update to view content. The primary malicious IOC is the ttraff.com redirector URL.
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.com/pify?keyword=researchgate+download+pdf In PDF document text
- http://files.ronjasvaneborg.com/uploads/1/3/0/8/130813357/zewudo-tekekusomaf-begubikewasi-sazodena.pdfIn PDF document text
- http://files.midlandboxerclub.com/uploads/1/3/2/7/132741764/20dcdc8f4d1.pdfIn PDF document text
- http://files.teachartathome.com/uploads/1/3/1/8/131871518/tibexo.pdfIn PDF document text
- http://files.coastsidelutheran.net/uploads/1/3/0/7/130738753/kizarejawababul.pdfIn PDF document text
- http://files.cariblit.org/uploads/1/3/1/4/131406717/podexolifonubap_menisalokafu_birigegixuxud_rakuj.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/1/0428/9767/0303/files/68275512779.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2936/4889/files/xonexogivubutujuvulefo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5915/1009/files/tekagunexeset.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6662/2106/files/mokopekurelodagu.pdfIn PDF document text
- https://lekaripemuwi.files.wordpress.com/2020/06/bananut.pdfIn PDF document text
- https://wufubupaku.files.wordpress.com/2020/07/14789404456.pdfIn PDF document text
- https://wexisipifaw.files.wordpress.com/2020/07/lifumegowulidolalemuwek.pdfIn PDF document text
- https://dopuzifiza.files.wordpress.com/2020/06/32651996476.pdfIn PDF document text
- https://ruxurogizipo.files.wordpress.com/2020/07/timelewowuvepu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0741/8273/files/lenurozapuweseti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8056/4392/files/85118608967.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0743/5167/files/xisamutopogoluvof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2826/6654/files/48373598211.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2318/7614/files/33900046130.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9587/5989/files/61036024388.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5249/1159/files/39555210380.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5630/8123/files/dogunijuvewilukofiwek.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_off0000bdab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDAB | 5256 bytes |
SHA-256: 320e7c98cd36f4cecd18c5741f0f73981ac2cfbd22f90c82153479c6304919fc |
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font_01_sfnt_off0000cf97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF97 | 10892 bytes |
SHA-256: b33a1a331439d0e5e7927140b3cef2f479226fcfe544a6c36b06e6474cbf0330 |
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