MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or are part of a link farm on disposable hosting. ClamAV and ML classifiers identify this as malicious, likely a phishing or malware distribution lure. The presence of external URIs and link farms suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://krisoc.ru/uplcv?utm_term=mario+64+rom+android PDF link annotation
- https://pro-biomed.com/admin/userfiles/file/6097243684.pdfIn PDF document text
- http://autoklej.pl/app/webroot/media/files/44998608022.pdfIn PDF document text
- https://lrsdev.com/userfiles/file/70908263043.pdfIn PDF document text
- http://domoticasociale.it/immaginiNewsletter/file/33853994108.pdfIn PDF document text
- http://orderleesushi.com/uploads/files/topokokeved.pdfIn PDF document text
- https://eetravel.net/file/59560164338.pdfIn PDF document text
- http://ckudzcssffhhj.handysociality.com/upload/files/40137529141.pdfIn PDF document text
- https://hostsolutions.ro/app/webroot/files/userfiles/files/61805426590.pdfIn PDF document text
- https://horgaszvelem.elelmiszer-hazhozszallitas.hu/ckfinder/userfiles/files/dokefakez.pdfIn PDF document text
- http://abwessex.com/uploads/files/15137599823.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1613a485b31539---67803108828.pdfIn PDF document text
- https://dom4m.de/userfiles/files/gezinufesipejazoriregub.pdfIn PDF document text
- https://chulintemple.org/CKEdit/upload/files/kiwepakudotu.pdfIn PDF document text
- https://funcarele.com/ckfinder/userfiles/files/82574608098.pdfIn PDF document text
- https://saikekanglun.com/filespath/files/20210920193040.pdfIn PDF document text
- http://pecsimutargygaleria.hu/files/file/68303846787.pdfIn PDF document text
- http://www.frank-diagn.hu/userfiles/files/ruvosatotatat.pdfIn PDF document text
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/141b39cb337f29e4162b94ab73dab1f9/61010040364.pdfIn PDF document text
- https://bilalyapidekorasyon.com/userfiles/file/wawonevugutabus.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138df28437ee---nogutid.pdfIn PDF document text
- https://alistairmills.com/ckfinder/userfiles/files/kujebavidevax.pdfIn PDF document text
- http://ttc-investco.com/img/files/33828804969.pdfIn PDF document text
- http://rinsacars.com/files/others/bibubip.pdfIn PDF document text
- http://myxroad.net/upload/userfiles/file///goposekokaronorijino.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_off0000de0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE0B | 19196 bytes |
SHA-256: a0380182369eb2ba1748fb88a20ea6faaf40cd50f3124bad62e4a7b115a5427d |
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font_01_sfnt_off00010f83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F83 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001279a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1279A | 10204 bytes |
SHA-256: 28284e490cafa540caa8dc364839705a155c2b8ba3d1219c18464888083c8c9d |
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