MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is unreadable, but the presence of a link farm on potentially compromised infrastructure points to an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://catamma.ru/uplcv?utm_term=clearing+up+confusion
- http://componentcnc.hu/uploads/ckfinder/userfiles/files/61507811325.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/9fb9e2c11ae8f1294f8ae1beb8a84c0c/wuvunojoxunal.pdf
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160852ffa1de9e---vugateme.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f7d428c2b---76558744630.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c7b7f9d46f2---33308842077.pdf
- http://lapenya.cat/imgjovesnaves/file/90905134869.pdf
- https://sayurmateng.com/contents//files/87668263287.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad4bb56f203---76578834868.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/8be37970170f64a790a7a674452d5ace/kasolizanijepozifiwo.pdf
- http://portalcom-b2b.es/img/user///file/_0689551001619951211.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/a500dda1a2c57cf3d35706966d20b110/jebaniletejoxomomujari.pdf
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/93e0d77c75b4c3adba7f7e48af681ce1/30501397482.pdf
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/90be84ec3564ce501268a73a2f02ce3a/14742622947.pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/5edbf35e473b22587d5905416477c490/ketawine.pdf
- https://elbag.net/wp-content/plugins/super-forms/uploads/php/files/2a477702da847d2fdd52d0a8d128456f/18881930418.pdf
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/11ec32d9cdbf522cdb9761d846d207c6/mexilejisevibizijel.pdf
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3a84535fa---36761823060.pdf
- https://roweryelectra.pl/app/webroot/uploads/file/16216819677606.pdf
- https://binarbaidservices.com/public_html/userfiles/file/lufadewitadufa.pdf
- http://asirakademi.com/resimler/files/63451693109.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/351e2f9ce2f5c7b3c42eac2889b9f648/sukera.pdf
- http://myflora888.com/ck_files/files/zinepituvinebaguz.pdf
- https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/f58124b75387fc3bc64444bd498170a3/87560593730.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_off0000ec99.bina4fc64794ccc0f3efc578c6aceb5735bc86ed43bc4d6719126d4cfcd17783ab8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC99 | 17792 bytes |
font_01_sfnt_off00011b3a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B3A | 16792 bytes |
font_02_sfnt_off00013351.bin2a4348e1014327f652b0492397183d8623388daa622e90900cf79846992f5eba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13351 | 10688 bytes |
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