MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains embedded JavaScript and numerous external URIs, many of which are part of a link farm hosted on disposable or compromised domains. These links likely serve as redirects to phishing sites or malware downloaders, aligning with the 'Spearphishing Attachment' technique.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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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://oniceh.ru/uplcv?utm_term=how+to+facetime+audio+call PDF link annotation
- http://p-jtech.com/userData/board/file/40225386571.pdfIn PDF document text
- http://autosklo.sk/pictures/file/79373434780.pdfIn PDF document text
- http://pribatu.lamilagrosaimport.com/images/files/43207618073.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/04d6bb0db56b5131fab00ff46472ee05/23536659872.pdfIn PDF document text
- https://serka.com/serka/upload/files/gogozajuguvivugelejidugef.pdfIn PDF document text
- http://feminella.ro/upload/fck/nojagiji.pdfIn PDF document text
- https://kar360.com/resimler/files/39917977556.pdfIn PDF document text
- https://goacetours.com/ckfinder/userfiles/files/66678505507.pdfIn PDF document text
- https://xedulichhaiphong.vn/images/news/files/61839963910.pdfIn PDF document text
- https://arhstroi.by/uploads/files/xonon.pdfIn PDF document text
- http://sentezetutmerkezi.com/upload/ckfinder/files/jagisozawamowekurewo.pdfIn PDF document text
- http://bienchidan.org/uploads/files/fulilununenakaburatijol.pdfIn PDF document text
- http://roomyab.ir/basefile/roomyabir/files/88434356163.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140fbd6444fb---nosoregutejivevajukop.pdfIn PDF document text
- http://xprchemical.com/upload/files/15154971785.pdfIn PDF document text
- http://canadianrockies.info/files/file/luweninil.pdfIn PDF document text
- http://evergreendentistryva.com/app/webroot/js/ckfinder/userfiles/files/zazekizawix.pdfIn PDF document text
- http://tuvanthanhlapcongty.biz/upload/ck/files/zifovoxudurimupazalufe.pdfIn PDF document text
- http://swatimishra.in/uploaded_files/userfiles/files/pezuwipanipi.pdfIn PDF document text
- http://lnianemarzenie.pl/userfiles/file/dixudoluposanovutixibo.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143a10444a33---meranuxabixezopo.pdfIn PDF document text
- http://studioprogettoarchitettura.eu/userfiles/files/bitefimasegumurepaze.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_off0000b55a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB55A | 10440 bytes |
SHA-256: 6b5fce470a283082593fb7ad7ec7d9faa03a79798f775215f77ddc3d5d902a96 |
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font_01_sfnt_off0000cd0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD0E | 16240 bytes |
SHA-256: b644075d50daf5a164df60efb272cf10aa75a58ecad7da8b66c682248b5a4d3d |
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font_02_sfnt_off0000f6cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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