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 WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious files. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://synerhu.ru/uplcv?utm_term=download+template+android+studio+free PDF link annotation
- https://drivetripper.com/userfiles2020/files/72895133625.pdfIn PDF document text
- https://www.sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/tofakisud.pdfIn PDF document text
- http://saraya-shop.ru/upload/files/16719928159.pdfIn PDF document text
- http://thewesternmist.com/userfiles/file/3683506766.pdfIn PDF document text
- https://ksi-system.pl/editorfiles/file/poziwipuvedufutevoneji.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/d29a691f9f505cbd8077dcf74fa6099d/44190878110.pdfIn PDF document text
- https://notarbrazda.cz/userfiles/file/In PDF document text
- http://aolisenjiancai.com/data/files/dusuzad.pdfIn PDF document text
- http://firegallery.ru/img/upload/66802651043.pdfIn PDF document text
- http://floramarble.com/uploads/xozasugobataki.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16137ee3c5a776---suvugegetuwixebivatiwun.pdfIn PDF document text
- http://buyyoutubesubscribers.com/ci/userfiles/files/50315756992.pdfIn PDF document text
- http://originalavto.ru/userfiles/file/sarekudimamep.pdfIn PDF document text
- http://cana.vn/uploads/userfiles/file/lubavareteviwaxisigon.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee6f3a83b6---metilikaj.pdfIn PDF document text
- http://seteo-dechets.com/images/file/69775354437.pdfIn PDF document text
- http://pnktools-th.org/ckfinder/userfiles/files/20950929009.pdfIn PDF document text
- http://www.jobsincrete.gr/images/_user_na/file/81426236052.pdfIn PDF document text
- http://naphotelbangkok.com/userfiles/files/kuraparujemuvokarivori.pdfIn PDF document text
- http://deltools.com/userfiles/file/1087719194.pdfIn PDF document text
- http://mgocsm.in/userfiles/file/71005096085.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/gixejumusujaz.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_off0000b0ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0ED | 10848 bytes |
SHA-256: d6405f9c1d6838557e4d5688e6b2cd8b680701b074f18a04c01acc813ecce764 |
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font_01_sfnt_off0000c9fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9FB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e20d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE20D | 14148 bytes |
SHA-256: c30281f62d1995a566cdb2e621edf8b3e6e46cfc7f39f76e0d9feb2c23bcc5ad |
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