MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=arsis+std+regular+free', is flagged as a known malicious redirector. The presence of numerous external links, including those hosted on Shopify, suggests an attempt to manipulate search engine results or to distribute malicious content through a link farm. No scripts were extracted, and the document body was unreadable, but the heuristic firings strongly indicate a malicious redirection or SEO spamming attack pattern.
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=arsis+std+regular+free In PDF document text
- http://files.armiesoftn.org/uploads/1/3/1/4/131454916/vixekoguvezatu-zagitematobusor-gilamud.pdfIn PDF document text
- http://files.cohesionengineering.com/uploads/1/3/0/7/130739974/bavisixalonev.pdfIn PDF document text
- http://files.drewwatsonpups.com/uploads/1/3/1/4/131454791/vufowabuxutafo_tapuzebafujidab_sokeleditunajot.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/1/0430/6580/2905/files/kejaposuxijeju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0096/9896/files/61108176150.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28068876324.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1800/9250/files/12363594472.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3341/9166/files/petals_in_the_wind.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4145/5254/files/7367500328.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1992/7713/files/vegetable_lasagna_butternut_squash_sheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0124/0992/files/exemplars_of_evil_3._5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7753/3856/files/sixavojuvejudazusafag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3445/1874/files/43356501078.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000569c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x569C | 5064 bytes |
SHA-256: 8c3e232661ee9718c6e7ab18858fc72549200aef81170d289a91e6550214f8fb |
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font_01_sfnt_off000067df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67DF | 15876 bytes |
SHA-256: 76eeaf41bf0ca2bd01698aaf6aaf4a0b0c3384bbfc45d8e6d44b6c895c281e83 |
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font_02_sfnt_off00009a05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A05 | 16084 bytes |
SHA-256: e5245523bd71a78e06ca3300da63f55ad096e28dd8c1a5e83e138be64f7d0aee |
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