MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. Although no scripts were explicitly extracted, the nature of the embedded URLs and the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://queure.ru/uplcv?utm_term=cape+fear+center+for+digestive+diseases
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/ca745a39bf493eeec669812412fcf98e/zimegamigitugowapobe.pdf
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092722a6ffe3---nosewefupurufigotijuga.pdf
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a28891938e2---51438902940.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/5d77eefab862a3f9684f978e4e00c52b/45761136462.pdf
- http://saluteebenesseresas.it/userfiles/files/27279180988.pdf
- https://paperland.bg/uploads/file/79913989970.pdf
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b9f20b0a2---41381401430.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/ffc87eb023d05d07e96610a570d5fbdd/80714899669.pdf
- http://bebelino.ru/userfiles/file/58832624611.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/a730a8e6da8ff475d0c2e86a44c931df/88762331675.pdf
- http://psychologkmalinowska.pl/ckfinder/userfiles/files/xegurefojefebalibuxex.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b02e0225a5---vorozi.pdf
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1607829b9130b5---51192914938.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/n62dsnfbkr60afq5evr9jqnmm1/gapetatikas.pdf
- http://helderlive.nl/ckfinder/userfiles/files/92676565572.pdf
- http://kondicionery-dolgoprudny.ru/upload_picture/file/tupejiraradodaxojefodo.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/c7eeb5fc52dbd72d71a939cd09d9f6c8/lokipanewufusabawemotosof.pdf
- http://matstravel.ru/userfiles/file/visajox.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9d53363f0---voroteralib.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/f9d8b259ed8761c69a68e350b98eaa84/subulamuzakike.pdf
- https://kumsalgame.com/calisma2/files/uploads/tamanamide.pdf
- http://jtour.vn/userfiles/file/zapuwelan.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609db3c71e1a6---vusufoso.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_off0000c274.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC274 | 16792 bytes |
font_01_sfnt_off0000da8b.binf64a1937969bd1eed363a1bff4fdd2b9d298ad2322b2b90b550e269bba66a281 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA8B | 10844 bytes |
font_02_sfnt_off0000f38c.binb2eddfd8ab8b0e617f6c46982476cdcc5548cf236229cdfbd6d7d4435d4be37a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF38C | 17556 bytes |
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