MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a redirector, which is likely intended to lead the user to malicious content. The presence of numerous links to external PDFs, many hosted on seemingly unrelated domains, suggests a link farm designed to obscure the ultimate destination.
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.cc/pify?keyword=pyridine+piperidine+alkaloids+pdf In PDF document text
- http://files.cottonginmuseum.com/uploads/1/3/1/3/131380849/kotevuwefapu.pdfIn PDF document text
- http://files.northernchainspecialties.com/uploads/1/3/1/4/131407796/71111330083d.pdfIn PDF document text
- http://files.hsfhomeconnections-hsf.com/uploads/1/3/1/4/131437627/sozusax_mesijuwoguzu_jivuterinu.pdfIn PDF document text
- http://files.qvschoolpsychology.com/uploads/1/3/1/1/131163955/tojif_minigelu.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/1/0431/1243/1776/files/zumefa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8424/2337/files/econometrics_book_by_koutsoyiannis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4267/6648/files/5337927077.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7460/0598/files/cost_and_management_accounting_n6_questions_and_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4349/5841/files/nezumavoro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3555/0118/files/aristofanes_las_nubes_pdf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1320/9246/files/dependability_definition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4750/8385/files/mupowaruzibeperur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2294/8251/files/61465264672.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9606/4671/files/kawizefomiwobivuni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/61168440284.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0087/3631/files/kesafilijujifejoza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9811/9075/files/256628292.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0417/4233/files/xodiva.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5702/9024/files/categories_of_art.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_off00008c19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C19 | 5200 bytes |
SHA-256: 07ce029dc907eb403e8560b708585318072b45bfbf485c5a26c8292c5c4353ce |
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font_01_sfnt_off00009de1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9DE1 | 16180 bytes |
SHA-256: 210850c2731ef8698549ae38a2f59122db239ddbe98c4693fe12254dcd061858 |
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font_02_sfnt_off0000cef9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEF9 | 16344 bytes |
SHA-256: 09554097f509d12e8620120fa439a2c39b5de1b415e2b8a577ad22ee67661791 |
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