MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs that point to a variety of domains, many of which appear to be compromised or disposable hosting. The heuristic firings indicate this is a link farm designed to redirect users, and ClamAV detected it as a phishing trojan. The ML classifier also flagged it with high confidence, supporting the assessment of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://inwebjor.ru/uplcv?utm_term=psychotic+disorders+review+pdf PDF link annotation
- https://cubic.is/userfiles/file/zimiranid.pdfIn PDF document text
- http://hanasushimenifee.com/uploads/files/97535873504.pdfIn PDF document text
- http://www.victoriousintl.com/new/resource/files/dejivugusemevujizedi.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/50863274753.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160abcee01932e---84837735197.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/4dp8gt2d4vlm2qu332igdke56i/kenosawujok.pdfIn PDF document text
- http://pusancard.com/userData/board/file/lajugud.pdfIn PDF document text
- https://betamachinery.sa/other_files/File/pumanamubonegarixixivudov.pdfIn PDF document text
- http://lovepetclinics.com/file_media/file_image/file/72384436913.pdfIn PDF document text
- https://hitpoint.tw/userfiles/file/sajonifiruled.pdfIn PDF document text
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/1b6792b8657bee91b2ccdf7c4c6dfee3/zadejipa.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/61450601359.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/95df693584bc77e17097139674fbe7fc/gasimojudeseximegexixe.pdfIn PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/888kv5p43sc3216gstaepa1urm/zemugepuxorome.pdfIn PDF document text
- http://energosol.pl/images_cms/file/vaguxaxugelabosovoge.pdfIn PDF document text
- http://midlandhigh65.com/clients/6/68/682e31fde28f8c6bff7ebba57332ef5f/File/42782689796.pdfIn PDF document text
- http://insureatkk.com/ckfinder/userfiles/files/wiloperotinerudofepawuse.pdfIn PDF document text
- http://wernersuarez.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/77607430710.pdfIn PDF document text
- https://confetti-seasons.ru/upload/files/91471201390.pdfIn PDF document text
- http://schodylux.pl/userfiles/file/dututebavagomidozixa.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087ebcf23dee---82416469099.pdfIn PDF document text
- https://dafelia.com/files/40310793559.pdfIn PDF document text
- http://diamond6ranch.com/userfiles/file/61194037647.pdfIn PDF document text
- http://www.polni.si/Images/files/88717812489.pdfIn PDF document text
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/1rqbtp68qojo86iql3ag643282/55346974187.pdfIn PDF document text
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16085a2262d07c---50881787190.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_off0000c95d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC95D | 16820 bytes |
SHA-256: e340de2adcf3d2214c5795cd2d4615648e8cc1757a62abdafa51ce478879a7fa |
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font_01_sfnt_off0000f4d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4D4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ceb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CEB | 10672 bytes |
SHA-256: 88b348c5cc8b411a414028a1cf686bc1dccb41b47117a4eedd46f5d50edaab4c |
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