MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to potentially malicious PDF files. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicates a deliberate attempt to obscure the true destination by using a large number of disposable domains. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to trick users into downloading a secondary payload via the deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://grupophi.es/uploads/files/foninof.pdf In PDF document text
- http://szyuangang.com/UserFiles/file///fiwabonimil.pdfIn PDF document text
- https://clubberia.com/js/ckfinder/userfiles/files/7121832295.pdfIn PDF document text
- http://schuetzenfest-hemeringen.de/ablage/userfiles/files/kajapodaxix.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aadfde509a---89862729820.pdfIn PDF document text
- http://turbotechnik24.de/userfiles/file/74336606577.pdfIn PDF document text
- http://kieryk.pl/img/userfiles/file/gujiwasabikunudumazuposad.pdfIn PDF document text
- http://ekvatorbl.com/userfiles/file/86938841635.pdfIn PDF document text
- http://zhengfutz.com/v15/Upload/file/20219181856425041.pdfIn PDF document text
- http://juncheng.tw/upload/files/4698339777.pdfIn PDF document text
- http://abimobiliare.pl/pliki/File/25120080239.pdfIn PDF document text
- http://tourgrodno.by/images/content/file/lonebedevapom.pdfIn PDF document text
- http://svazekobciorlice.cz/userfiles/file/6588984099.pdfIn PDF document text
- http://cancunday.com/travela/img/files/zonorofogedemulisodeg.pdfIn PDF document text
- http://www.tractortools.cz/ckfinder/userfiles/files/40769890569.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613045e24b3a6---35711225930.pdfIn PDF document text
- https://mkontroll.hu/File/wewapukajutuxujukiv.pdfIn PDF document text
- http://shinies.ru/img/lib/file/rakogexal.pdfIn PDF document text
- https://blgjad.com/upload/files/tiwopikubajuvomi.pdfIn PDF document text
- http://www.gpe-el.pro/ckfinder/userfiles/files/92125600529.pdfIn PDF document text
- http://nenorm.com/files/files/jememikuxajil.pdfIn PDF document text
- http://splhardware.com/UploadFile/file/2021091320520973499.pdfIn PDF document text
- https://callmarkinvestments.com/callmark/files/xedogopi.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16144aaf4743c9---86073063324.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=daddy%27s+home+torrentPDF link annotation
- 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_off0000b685.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB685 | 17576 bytes |
SHA-256: 1800700ef5b1df41b2185c73480b3f4e60e26bd21218b180da81cfedf4a7e7ab |
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font_01_sfnt_off0000e42a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE42A | 10524 bytes |
SHA-256: 4519178d6ea53d6b3a98060ef03964621abca5c1ef229d7a63d8958e878bba55 |
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font_02_sfnt_off0000fc00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC00 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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