MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link farm pointing to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=administraci%25C3%25B3n+de+empresas+constructoras+2a+ed+pdf. The document body itself appears to be obfuscated or corrupted, but the presence of multiple Shopify-hosted PDF links suggests an attempt to manipulate search engine results or distribute content through a compromised platform. The ML classifier strongly supports the malicious verdict.
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=administraci%25C3%25B3n+de+empresas+constructoras+2a+ed+pdf In PDF document text
- http://files.wonderful-morocco.com/uploads/1/3/0/7/130776673/dilameve_lixotu_tilosuz_vagemetofemede.pdfIn PDF document text
- http://files.alexbaecher.com/uploads/1/3/0/9/130969206/6285112.pdfIn PDF document text
- http://files.carrwriter.com/uploads/1/3/0/7/130776460/julenaritokedej.pdfIn PDF document text
- http://pujukus.provencemesservy.com/uploads/1/3/0/8/130813528/7891650.pdfIn PDF document text
- http://files.corneliahoogland.com/uploads/1/3/2/7/132740264/9741885.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/1/0431/2514/5760/files/11746384072.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60527157158.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9162/3074/files/balanced_scorecard_advantages_and_disadvantages.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3191/0821/files/rune_factory_frontier_bachelorettes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4771/2928/files/51159676248.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8794/6133/files/10110766477.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9865/1288/files/jimagotubusaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0496/6565/files/icy_veins_resto_druid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6681/7702/files/73162939535.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6113/3990/files/kunivukomefadizog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8976/5279/files/unix_commands_with_syntax_and_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7773/8399/files/tonalekag.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_off00006e21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E21 | 5528 bytes |
SHA-256: 01c0595f6cf3bf69595ba159a3164a132d7665566dfe48e19e9f845ab870e940 |
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font_01_sfnt_off00008096.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8096 | 11388 bytes |
SHA-256: e3873f5079d8c64aefcfb147878dfa9238c0c47b43012f138d21a3ae98e6cf89 |
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