MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, which are likely part of a link farm to improve search engine ranking for malicious content. One of these links, https://ttraff.ru/pify?keyword=agonistas+y+antagonistas+adrenergicos+pdf, is identified as a known malicious redirector. The ML classifier strongly supports the malicious nature of this PDF. The document body appears to be corrupted or heavily obfuscated, preventing a clear understanding of its intended lure beyond the presence of links.
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=agonistas+y+antagonistas+adrenergicos+pdf In PDF document text
- http://files.parentfirstcouncil.com/uploads/1/3/1/3/131382387/40b3a846c7d954.pdfIn PDF document text
- http://files.dgcustomart.com/uploads/1/3/1/4/131414134/fe4ebb7a8286.pdfIn PDF document text
- http://files.ukhomesteading.co.uk/uploads/1/3/0/7/130776168/9261271.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0431/0079/9140/files/83212017776.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0300/1502/files/sosulokuxuzutel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7201/1941/files/rufuxefevori.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1952/5531/files/51252972270.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6633/6166/files/81862600759.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8289/9871/files/dupeze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7556/7777/files/83239981014.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7076/6750/files/38557877510.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6241/1942/files/35795314617.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2198/4166/files/visosidebi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7245/3797/files/ninopifirutole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1334/0316/files/nuzutugakuvixi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7665/7051/files/dalupumovo.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_off00009362.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9362 | 1804 bytes |
SHA-256: 930c73806be9e60a60206be6651bcbe81352638e3889414ea58bc5a213d4674c |
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font_01_sfnt_off00009c3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C3E | 5168 bytes |
SHA-256: 52473ac86680b81165b6e9b71e73d7362f7acac93cc706b084c67575d7d8810f |
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font_02_sfnt_off0000adea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADEA | 11336 bytes |
SHA-256: c3b520021843ee8fd180d952d95c400ee1cd167554fd0f2a50f8c167baa096cb |
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