MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised CMS upload directories, suggesting it functions as a link farm to distribute further malicious content or phish users. The presence of multiple external URIs and link farm heuristics strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/77a07f5964a6add9f7f27cef7bff105f/buruzedugolemumi.pdf
- https://khyatiinfotech.biz/ckfinder/userfiles/files/pogajewewufiripok.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075aa3d3c5be---rerunipiwirilaselelibum.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160bf21df6a476---21843883178.pdf
- http://tamilannuaire.com/var/www/vhosts/vps296430.ovh.net/tamilannuaire.com/images/file/51731210487.pdf
- http://erdivigado.hu/userkepek/file/pagebiti.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16089046763779---37376671790.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1607700f9c6d87---36198352878.pdf
- http://puppies-4u.com/clients/e/e7/e7f09595da74c05d2059c741134300d2/File/duwekemigotodiwodag.pdf
- http://meble-tk.pl/userfiles/file/xixeminosadojerugad.pdf
- http://rhondachem.com/d/files/lipafu.pdf
- http://sochi-polyana.com/ckfinder/userfiles/files/xudorunulifizuza.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7494b80c96---kofesewefuvuxorugujivul.pdf
- https://dolaodong.com/userfiles/file/39870886025.pdf
- https://denizlihorozu.com/resimler/files/rabobaz.pdf
- http://yishiweb.com/upfiles/files/20210621_071257.pdf
- https://agatanorek.com/files/file/rogaxuzebimenabetupofaw.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/9ntbb2hrtm1fuo8t96bejfsij7/gojunulovo.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608079894fe77.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c6331e59bd7---lapuwerilasekupux.pdf
- http://prestizhstroycompany.ru/SITE/files/editor/file/26551664428.pdf
- http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/tovapusep.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=tom+and+jerry+movie+2020+trailer+download
- 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_off0000fa52.bin575bd16ae679f0db4d1ca4d64a3b082519d22824e53fdbf229872c8b64920975 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA52 | 10840 bytes |
font_01_sfnt_off0001135c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1135C | 16792 bytes |
font_02_sfnt_off00012b6e.bin75cc3214eb99bcea84640504d67a8fcbfe6c5ad0dae9cb8a4ec1a7f6113853da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B6E | 18560 bytes |
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