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 for a malicious redirector. The primary malicious URL is `https://ttraff.ru/pify?keyword=passive+voice+exercises+pdf+present+simple`, which is likely used to lure victims to malicious content. The document body itself is heavily obfuscated but contains the same malicious URL and other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic to distribute the malicious PDF.
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=passive+voice+exercises+pdf+present+simple In PDF document text
- http://files.schmittwoodworkingllc.com/uploads/1/3/1/4/131407921/6871751.pdfIn PDF document text
- http://files.lacaa.com/uploads/1/3/1/4/131407292/7336897.pdfIn PDF document text
- http://files.jayhawkhealthinitiative.org/uploads/1/3/2/6/132680986/mofosowalulesu.pdfIn PDF document text
- http://files.markcraiggallery.com/uploads/1/3/1/8/131871909/fetin-vewonid-jarijumux-pozinoxa.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/1/0429/8568/5153/files/poultry_diseases_in_urdu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7119/9642/files/69885221888.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6859/6123/files/jalawulusorafejowibati.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4539/6384/files/rikemas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0564/8801/files/belurek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1008/8357/files/99514585058.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5144/1563/files/1412367813.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4599/4146/files/kulobedifez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0311/5682/files/acta_constitutiva_srl_mexico.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8462/8633/files/rujikiwogomugewatimosepop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8354/6267/files/tratado_de_libre_comercio_con_la_union_europea.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4852/5206/files/genetic_algorithm_in_python.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5100/7638/files/2565928838.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4815/5806/files/brawl_stars_hack_apk_2019.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_off00004cc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4CC7 | 5428 bytes |
SHA-256: 9d3ab015e7c83c17f0bf03e9ada5de3ce1676de45b77f1e3c32cfb7cb51e4299 |
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font_01_sfnt_off00005f2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F2A | 9772 bytes |
SHA-256: 9c4c4766ab259116d4d7a5dddec117cc8028e676867089a18f98ba3489265691 |
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