MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as a phishing trojan. The file contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm or phishing lure. The presence of embedded URLs and the nature of the heuristics indicate the file's primary purpose is to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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://catamma.ru/uplcv?utm_term=guitar+all+basic+chords PDF link annotation
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/d0ef12871a218a4717f9a1feeefc209b/gewekusavijikux.pdfIn PDF document text
- https://kotypsy.pl/ckfinder/userfiles/files/75334686491.pdfIn PDF document text
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/9cb45ca1e79dec2d490e0d026991a2ed/giwow.pdfIn PDF document text
- http://globalnetworks.de/www.galabau-poscher.de/main/preview/ckfinder/userfiles/files/67070536306.pdfIn PDF document text
- https://nothingbutsafetyglasses.com/userfiles/file/rodonaganuzikemazuwiw.pdfIn PDF document text
- https://bakwanudang.com/contents/files/54268467444.pdfIn PDF document text
- http://artiguardia.pl/userfiles/file/86621044506.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130217f406e5---94918790581.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-9-5/20210905165028144197.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/nasg66bfbe51lscu2muijl0c80/60651949221.pdfIn PDF document text
- http://remaining-mc.de/userfiles/file/jizuvizolipuli.pdfIn PDF document text
- https://tckontrola.hr/files/jenifewirekitekebevolav.pdfIn PDF document text
- http://levant-tekstil.com/other_files/File/55828940885.pdfIn PDF document text
- http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/bedofuga.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614061b4d2dfd---71218570882.pdfIn PDF document text
- https://inprovituruguay.com/ckfinder/userfiles/files/wazezedafadosenuvi.pdfIn PDF document text
- http://fs-select.com/images/blog/file/7747447204.pdfIn PDF document text
- http://devison-matras.ru/upload/file/pusegexogepex.pdfIn PDF document text
- http://denis-lefebvre-services.com/fichiers/file/84056290524.pdfIn PDF document text
- https://sanghvicranes.com/staging/media/51786012091.pdfIn PDF document text
- https://ljlconst.com/admin/images/file/juwetezen.pdfIn PDF document text
- https://www.natursany.com/ckfinder/userfiles/files/juluroxotaxulaz.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_off0000d8c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C8 | 16932 bytes |
SHA-256: bf9e03dca3aaf1bfecd3c7f2f04e32f8614ee383cc0bb53b2a97e193ed818de5 |
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font_01_sfnt_off0001047e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1047E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011c95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C95 | 10508 bytes |
SHA-256: 08e3c1179515df84b6521a20b30292e66da3fc706a79acb8a2e4ae5195e547a3 |
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