MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing text but containing embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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://oniceh.ru/uplcv?utm_term=a+man+in+full+chapter+summary
- http://verduciautodemolizioni.it/userfiles/file/benelovejej.pdf
- http://www.deep2001.com/images/library/File/fofaj.pdf
- http://aliceinformaticasrl.com/user/pages/tazevaka.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8b7614953c---rebusizadadubadef.pdf
- http://kfbi.ru/content/file/rutuxopixenidew.pdf
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/eiqev8crpsdmtsnt9d51npq94o/nokidogagus.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160957da5adf38---zukalotopilamolod.pdf
- http://przychodnia-felinskiego.pl/uploads/editor/file/54410290715.pdf
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/15fc8ed7536e6faec228769db4b682d2/76923499032.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a06aae20ead---rinewozabupetofugiganis.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c24dd8e6bc2---57532617177.pdf
- http://chi-kara.net/userfiles/file/58881062359.pdf
- https://pima-alarms.rs/slicice/file/33023145121.pdf
- http://beveragesgs.com/userfiles/file/purowituxojuvabanurofa.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c1f44b76954---vojasupivazikupe.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d7454b80b3f---toxox.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c83d7ebda7---lukunijisapetiwawowoguz.pdf
- http://akvari-um.ru/userfiles/file/50698007902.pdf
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/8926ede1fc80b5fe288375b75530880b/56969358257.pdf
- http://crosswaysrecruitment.com/userfiles/file/94764651447.pdf
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5002e07bf6---pireluzidesike.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1e97c61663---15694619124.pdf
- http://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e37754fbed---20006877045.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0231d11cc1---50712354463.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001557d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1557D | 16792 bytes |
font_01_sfnt_off00016d8f.binfabc04ca2019788345205b3ab164cde11433a1e914a2a09d2ce76d29422d8afe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16D8F | 17108 bytes |
font_02_sfnt_off00019972.bina8ba65ecfc7eae1f72ec3813ef4985d77fad7bd5b28b814a95d0b80b21804c91 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19972 | 10820 bytes |
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