MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged by a machine learning classifier and a critical heuristic for linking to known malicious redirector infrastructure. The primary malicious URL identified is https://cctraff.ru/strik?keyword=kandinsky+concerning+the+spiritual+in+art+pdf. The document body contains obfuscated text and metadata suggesting it was generated by wkhtmltopdf, a tool often used to create malicious PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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://cctraff.ru/strik?keyword=kandinsky+concerning+the+spiritual+in+art+pdf In PDF document text
- http://files.waukeshacountyconservatory.com/uploads/1/3/0/9/130969989/vobodokoze-filelesiwof-pevawuforewine.pdfIn PDF document text
- http://files.melissaleighgibson.com/uploads/1/3/2/8/132814086/2285212.pdfIn PDF document text
- http://matag.richardbogle.com/uploads/1/3/1/4/131437130/1177433.pdfIn PDF document text
- http://files.1boxonline.com/uploads/1/3/2/6/132696351/kirixetibomosusalo.pdfIn PDF document text
- http://files.florablackett.com/uploads/1/3/1/3/131383727/7501434.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/1/0434/4994/2176/files/81993316427.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9763/7539/files/sukukejibotipipomefir.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/187c9dee-d461-41c3-a8f2-ef52a4f168a6/julezuviwaru.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ba0161cf-c41b-491a-8ca9-e4f2c29796c9/goxufalepaxej.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b4b5d033-f9c8-4fdb-b684-4d29b51da196/zojeno.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/503dfb29-ce2e-4d92-a3ae-33410371c9c8/39973603350.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7f9fbeda-34b0-42b0-bb54-413f66ca1a32/63936356365.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4899b4d8-3b14-4357-9882-f9404e4d52b6/93515034308.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e2f22488-dd16-4907-a372-baa1c0396fc4/51030671713.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008e2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E2E | 5552 bytes |
SHA-256: 72780bdcfdf431f2f01a7f9495e6bad51acadd0172ddf72404956f63dc340bb1 |
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font_01_sfnt_off0000a11b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA11B | 10300 bytes |
SHA-256: d85707518b430e554dc20aa6d46764f5979bec3eb729ee5ffed7cc18111553d2 |
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