MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute content through a seemingly benign platform. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of the file. The primary malicious IOC is the redirector URL.
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=position+velocity+acceleration+calculus+pdf In PDF document text
- http://files.ny6thinktank.org/uploads/1/3/1/4/131437862/rufafanodedajifuv.pdfIn PDF document text
- http://files.dorabramden.com/uploads/1/3/1/3/131382141/3729828.pdfIn PDF document text
- http://files.edgeservicesllc.com/uploads/1/3/2/7/132712072/4935833.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/1/0431/0731/9974/files/49379550322.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6145/8597/files/vobujurev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76957488457.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6113/3990/files/92-_95_honda_civic_service_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0815/4008/files/fupimugalap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0846/6845/files/25967918045.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6665/3858/files/beehemoth_armor_rotmg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9240/1573/files/46486517756.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6707/1894/files/lukatoxipeli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4098/7543/files/suguronoweta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0557/4309/files/44816240118.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7310/1214/files/kaxexelojabatogajazomu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4273/4237/files/67030429418.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_off00005f26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F26 | 5312 bytes |
SHA-256: 85f4e3f9a8fcccd3f5bd6ecec9f1a36bbb9480656aa14cf69d779c56f6636009 |
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font_01_sfnt_off0000715a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x715A | 14216 bytes |
SHA-256: 017d030e74e145bf5cacc9526723d6c5c14b010ef8b384f7e92734e8c4c6e24a |
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font_02_sfnt_off00009f43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9F43 | 16248 bytes |
SHA-256: 631dc26ad7bdfa5e8cdc1148c9ce12690d87b9152a49d16962aea82f10c714c4 |
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