MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious domain. The document body and heuristics indicate a lure for free content, likely to deliver a payload. The presence of multiple embedded URLs and the ML classifier's high confidence score support this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=prentice+hall+biology+textbook+pdf+answer+key In PDF document text
- http://files.cybersecurityinc.net/uploads/1/3/2/6/132681938/natuwafegaga.pdfIn PDF document text
- http://files.williamsburgrec.com/uploads/1/3/1/4/131437669/412f004.pdfIn PDF document text
- http://files.woodbrookhuntclub.com/uploads/1/3/1/6/131637081/pilokozan-wiforubin-zefori-kolezafodasidug.pdfIn PDF document text
- http://files.speiserlab.com/uploads/1/3/1/4/131410479/geteb.pdfIn PDF document text
- http://files.minds-eye-marketing.com/uploads/1/3/1/4/131410009/wezavuvogifazalokip.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/1/0429/1274/3591/files/21072752757.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8028/6372/files/seborewusededuviwabija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5911/6182/files/vudatowariluvikujedogu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/karulupavexamob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6596/6754/files/tikutowunekebuvisika.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5319/5165/files/72428852423.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0792/4635/files/acls_provider_manual_2015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9254/1589/files/zotenutadafuduguwa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1392/3228/files/75142680324.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/wilitokaxudiso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2806/2109/files/jiretirererigolam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7900/7384/files/advanced_excel_practice_exercises.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_off00006200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6200 | 5884 bytes |
SHA-256: f6a40a394acc65c08a35d876b8dbe6ebcddb165c3ea45a2cc66fc5c4748e4a24 |
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font_01_sfnt_off0000761d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x761D | 13168 bytes |
SHA-256: 5d720be541251e794eedd9328b032627290050af6608da15227e5f18a6868bef |
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