MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, characteristic of a link farm designed to improve search engine rankings or distribute malicious content. One of the embedded URLs, 'https://ttraff.com/pify?keyword=epidemiologia+basica+pdf', is flagged as a known malicious redirector. The document body itself is heavily obfuscated and contains a mix of text and what appears to be encoded data, further suggesting a malicious intent to obscure its true purpose.
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.com/pify?keyword=epidemiologia+basica+pdf In PDF document text
- http://files.coachellavalleyhypnosis.com/uploads/1/3/1/3/131398555/9324606.pdfIn PDF document text
- http://files.caregiverinspirations.com/uploads/1/3/1/3/131381706/sukemuseb_fozax_sapizosupub_bosiw.pdfIn PDF document text
- http://jidunofi.agroschurch.com/uploads/1/3/2/6/132681556/zezokezuwaz.pdfIn PDF document text
- http://files.adriannadougherty.com/uploads/1/3/0/7/130775084/nonemoruvumok_nezuvijedine_papeliz.pdfIn PDF document text
- http://files.quiethouseediting.com/uploads/1/3/0/9/130969772/171dc29df6.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0432/6889/8966/files/wezin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6215/6702/files/libilure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1571/6513/files/93342324353.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6583/4649/files/wiz_khalifa_remember_you_mp3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3056/1436/files/90293835922.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4169/9478/files/89106166429.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84602765162.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2567/0037/files/8483411078.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1851/0745/files/30196606194.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bobidaxida.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9228/6363/files/xokowevasimaforodema.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006172.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6172 | 5080 bytes |
SHA-256: 2ae7ebca3d83bbf48e57719425b113f2891cfe016968e855e1e41c5a0f67107f |
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font_01_sfnt_off000072c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72C1 | 10892 bytes |
SHA-256: 2ffd3528aabb242465a5314238eeca4be4ab13cb57dcbcc07a866bee904daed1 |
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font_02_sfnt_off000097d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97D7 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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