MALICIOUS
164
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 compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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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://coretry.ru/uplcv?utm_term=how+do+i+listen+to+my+outgoing+voicemail+message PDF link annotation
- http://mikailang.net/userfiles/file/20210513224756_632071183.pdfIn PDF document text
- http://e-sportis.com/images/upload/pobojoburukumagesi.pdfIn PDF document text
- https://spheresignal.com/app/webroot/userfiles/files/52324452037.pdfIn PDF document text
- http://thaide.org/userfiles/file/87526089460.pdfIn PDF document text
- http://paletydozahrady.cz/ckfinder/userfiles/files/37084726883.pdfIn PDF document text
- https://viettrungson.com/media//Files/nedapug.pdfIn PDF document text
- http://tara77.com/clients/46590/File/4451416870.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/62440750211.pdfIn PDF document text
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095b8e75a1b3---75268281226.pdfIn PDF document text
- https://tanthuantelecom.com/upload/fck/file/lenumulifepawil.pdfIn PDF document text
- http://metabolit-plus.ru/files/file/50570206628.pdfIn PDF document text
- https://www.area-tlc.com/public/ckfinder/userfiles/files/97058445728.pdfIn PDF document text
- https://sharmtocairo.com/userfiles/files/50241151550.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ed9e209b1c8---87225175788.pdfIn PDF document text
- http://salondebellezaanamariaromero.es//ckfinder/userfiles/files/29726153895.pdfIn PDF document text
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/93469323ad691fb4b016d3f41e8b421f/7033980001.pdfIn PDF document text
- http://abwcolley.com/uploads/files/zoter.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160adc56fe5076---67144424840.pdfIn PDF document text
- https://pu-sk.com/app/templates/js/ckfinder/userfiles/files/86410628441.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160d645d9bb457---zemivotomedeniwixi.pdfIn PDF document text
- http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16071b17967900---46213650256.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160beea2d4cf68---8056790353.pdfIn PDF document text
- http://jingluo.net/uploadfiles/files/vasopubuxidogovebux.pdfIn PDF document text
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/68e2d6d2ce681d5428ee753d843be609/jusolalipupuvelome.pdfIn PDF document text
- http://tuzvedo.hu/elemek/file/40655514735.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_off0000cb1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB1E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e330.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE330 | 16928 bytes |
SHA-256: f36d8c09ccc4a90c7fac7ad6ec35ea68a31575cc7a49a2203b8395291af3005d |
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font_02_sfnt_off00010f7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F7A | 10968 bytes |
SHA-256: 5ec8be5d13ccfe937f28a8c453f1721b81a8e48239cdc23e906d62ef3b295479 |
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