MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious File
The PDF contains a mass external link farm, with many links pointing to PDF files hosted on Shopify. One critical heuristic indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=acetylene+sds+pdf', which is likely used to obscure the final malicious destination. The document also employs a social engineering lure, instructing the user to install a browser extension or update to view content, a common tactic for credential theft or malware installation. No scripts were extracted from this sample.
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=acetylene+sds+pdf In PDF document text
- http://files.designlab.edu.sg/uploads/1/3/2/8/132814147/tepagezipifinu.pdfIn PDF document text
- http://files.familiessharinghope.org/uploads/1/3/0/8/130873826/nozagegajitir-lovogegojazuv-leniveliv.pdfIn PDF document text
- http://files.sommewino.com/uploads/1/3/2/6/132680852/cfe147.pdfIn PDF document text
- http://pawamum.houseofplenty.se/uploads/1/3/1/0/131070161/rotevilo.pdfIn PDF document text
- http://files.beachcitydoula.com/uploads/1/3/0/7/130776402/7727514.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/1/0433/6097/7048/files/xudizewivixegivujuras.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6381/3020/files/60942192743.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8062/0963/files/33764233046.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2379/3308/files/beximadisibis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5249/8070/files/dajejopuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1771/4334/files/domestic_animals_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6422/2101/files/53046997691.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7383/1072/files/duzuwinikifibejawazipefiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8545/5769/files/69649502016.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1596/9688/files/rofuweluloz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2032/8864/files/sopafavalegigom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4164/3928/files/wowewob.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_off00004476.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4476 | 4932 bytes |
SHA-256: 8b575d6d7163870054e1953d5e9e0c16f9f7a22adb1de880df63e656ef51ff26 |
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font_01_sfnt_off0000555e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x555E | 9656 bytes |
SHA-256: a3190922c97b2b1686facd4ea9856280ed5498a4444a321fad6c8bbb79f4c097 |
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