MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.ru). This suggests a link farm or SEO poisoning technique to distribute malicious content. The document body, though heavily obfuscated, contains the malicious URL and other benign-looking PDF titles, likely to improve search engine ranking and lure victims. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=tutorial+of+c+programming+pdf In PDF document text
- http://zavax.perksautospa.net/uploads/1/3/2/6/132682076/b9771.pdfIn PDF document text
- http://files.angelocallerame.com/uploads/1/3/1/4/131453432/lidirize-xobezo-xawik-vilirakadetebir.pdfIn PDF document text
- http://files.discountduniya.com/uploads/1/3/1/6/131637136/wifavofokatanivo.pdfIn PDF document text
- http://files.amaliallombarthuesca.com/uploads/1/3/1/8/131856852/9752670.pdfIn PDF document text
- http://files.halcyoncenter.com/uploads/1/3/1/3/131380316/pasufowuki-nifozivatigorep-xuzedadanovaxew-xipeguxesatir.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/1/0438/9509/5464/files/wamomuvikewabogarexitita.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0303/4276/files/a_handbook_of_contemporary_spanish_grammar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2669/3789/files/vaxosa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5031/9517/files/wavezanogusuwok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50036278562.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/1653/1617/files/que_es_el_amor_psicologia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2745/5387/files/analog_to_digital_converter_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2518/7491/files/51128412263.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0436/2906/files/dagivotelux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4198/7479/files/58873118564.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7827/1641/files/gubanowatibozix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1186/5751/files/virtualbox_connect_to_internet_windows_xp.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4281/5643/files/kelozepiniberemusa.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_off00006f10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F10 | 5244 bytes |
SHA-256: df12c803d69bf10f8d658f5cff588f159e3d348e5e1e4f0a4d298c7d4706a3b2 |
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font_01_sfnt_off000080ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80CA | 10392 bytes |
SHA-256: d3eccf96c3e4047a3e7ce034f563cf863e825948500860bcd606e630997f8488 |
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