MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document is identified as malicious by ML classifiers and ClamAV, flagging it as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and disposable hosting, likely serving as a distribution point for further malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's a lure to trick users into downloading a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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=statistics+for+management+and+economics+11th+edition+pdf+free+download
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/t3abmg2v5o02ttc07cg0u8id41/duxirazavulapivavunukim.pdf
- http://catherine-massage.com/ckfinder/userfiles/files/pomitilodaginodoj.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/eb53afe39d38ee4fc547572126b99dcf/48303530557.pdf
- https://lawrenceyezersky.com/userfiles/file/13245884168.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160caf5bc9a2cd---30620665067.pdf
- https://starwebline.com/calisma2/files/uploads/zozobewajev.pdf
- http://designklasse.de/ckfinder/userfiles/files/84010702522.pdf
- https://indirimlipin.com/calisma2/files/uploads/63105447455.pdf
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac441225f05---67500763772.pdf
- http://akvatoria.by/UserFiles/files/kosamuwemebone.pdf
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/46e15f405a69ee9c597cab61181e2e70/85401527108.pdf
- https://eghamatyab.com/basefile/bainbookcom/files/28807980904.pdf
- http://angelojrobles.com/admin_initial_test/userfiles/file/94184550566.pdf
- https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/bj4j4kig3b3fh71g0ume60f1ps/7351852733.pdf
- http://surmounttravel.com/userfiles/files/dunotivumik.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a504fec749f---rusawifakazuzegifumozebe.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607a290c9d619---48813845881.pdf
- https://kopari.hu/files/file/99894189788.pdf
- https://jcpcdesign.com/upload/ckfinder_temp/files/20210630144321.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/c1379145419ab49e5eefbfa7454c1a8d/28647445674.pdf
- http://alpha-th.com/userfiles/file/3046420520.pdf
- http://dallaslandscapedesign.com/media/files/jamalizuva.pdf
- https://polandpools.com/contents//files/safelizivobujo.pdf
- http://www.sealjet.mn/pictures/files/56865984404.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_off00011992.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11992 | 16792 bytes |
font_01_sfnt_off000131a4.bin9bbfe201132b7abba4c108588c9586cc0ea662602a4f67cb93cd8b606acb45e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131A4 | 18184 bytes |
font_02_sfnt_off0001615f.bin34fdac214b7836a735747c0d83b78d3986751985f91ce16e3fef1ba1a9b1d549 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1615F | 11280 bytes |
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