MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it contains a link farm and a visual download button, suggesting a lure to download further malicious content. While no scripts were explicitly extracted, the PDF structure and associated URLs point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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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://medvor.ru/uplcv?utm_term=five+nights+at+freddy%27s+help+wanted+download+apk PDF link annotation
- http://ctkupavna.ru/upload/file/jinotuwejibape.pdfIn PDF document text
- https://nstoplana.rs/ckfinder/userfiles/files/pigiduzat.pdfIn PDF document text
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/26dcb0a80241a5b6dc954c20c8bd2810/benisitabozufefanazutasi.pdfIn PDF document text
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/t7062tjjej3mlpneer9t9gmqn0/33276781582.pdfIn PDF document text
- http://hesexpo.com/img/editor/image/file/74106543901.pdfIn PDF document text
- http://younewstoday.com/task/userimages/file/5944546874.pdfIn PDF document text
- https://berettyotv.hu/userfiles/files/rajes.pdfIn PDF document text
- http://liavanhaeringen.nl/userfiles/files/64720279990.pdfIn PDF document text
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608010961e269---96958000559.pdfIn PDF document text
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160806189b6a14---lofavojipidepeniwixi.pdfIn PDF document text
- http://dansecyr.ca/pdf/file/64349640675.pdfIn PDF document text
- http://speeddating.lt/speeddating/ckfinder/userfiles/files/mesuxesamugonudefufaj.pdfIn PDF document text
- https://semut73.com/contents/files/14171814995.pdfIn PDF document text
- http://xn--xhq021fvrwdth.com/d/files/nivikijis.pdfIn PDF document text
- http://www.wiz-fac.com/uploadImg/file/42150676103.pdfIn PDF document text
- https://stop-remont.ru/ckfinder/userfiles/files/derakuzawori.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2e1705d5c0---xirasujepuwonoroliduzew.pdfIn PDF document text
- http://solarhomepage.ch/fckeditor/editor/images/file/pekud.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://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_off0000dc82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC82 | 11148 bytes |
SHA-256: 76e92fff59f7c05b91edc4fe39e746ec06b05ca93d4dfee57d7f77bcb6451c77 |
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font_01_sfnt_off0000f660.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF660 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010e72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E72 | 18600 bytes |
SHA-256: 405169bdf2cf15605d99da6e65c2e4bf3620331775a15c307f2d43532c72a452 |
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