MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to host link farms for SEO phishing. The embedded URL, https://ttraff.ru/pify?keyword=structure+and+function+of+blood+vessels+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary purpose is to redirect users to potentially harmful content.
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=structure+and+function+of+blood+vessels+pdf In PDF document text
- http://files.armstrongfamilylaw.com/uploads/1/3/1/6/131636862/gakebivosiwenitover.pdfIn PDF document text
- http://files.ultraexteriors.net/uploads/1/3/0/9/130969489/8240a19c1.pdfIn PDF document text
- http://files.oceanheartscollide.com/uploads/1/3/0/7/130775653/xanotapabi.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/1/0437/5799/4138/files/duzovofemewinuvur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8397/2256/files/90861817727.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1975/4907/files/jexegodibafer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3308/4575/files/11324726914.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/3815/0549/files/annotate_surface_pro_4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7552/6051/files/arduino_full_guide_pdf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9994/5112/files/zebusibusenogixa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2077/1750/files/bdo_roaring_magical_armor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1361/1413/files/30516535886.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7411/7015/files/nekixuboraku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7641/9744/files/lipimuwejawakugivubikuve.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2316/3801/files/vogidexevagidimufow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7977/0019/files/youtube_stream_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5622/5688/files/29595037069.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
🗂 Part of campaign:
oceanheartscollide.com
3 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000856b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x856B | 5452 bytes |
SHA-256: a1570c1ea89af153be340585adf19c9019bb35cc335d1b894fe7c7c3ee61b509 |
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font_01_sfnt_off00009806.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9806 | 10192 bytes |
SHA-256: 1d521e306a1d61038cbb1e2433405d53cb0a6af0c3d78914472755dca65f426e |
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