MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution attempt. Embedded JavaScript was also detected, which could be used to further obfuscate the malicious intent or initiate a download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://valstybestarnyba.com/upckfinder/files/nebunavoge.pdf
- http://studionegrelli.it/userfiles/files/jikogiverugaviwajuja.pdf
- http://supair-lux.hu/ckfinder/userfiles/files/vikufamigazum.pdf
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613ddc7773c39---73675606314.pdf
- http://tindangnhadat.vn/upload/files/49883968047.pdf
- https://vayamcs.com/content_files/files/39755502948.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16133e9fa09233---24520326396.pdf
- https://bunianco.com/other_files/File/4088921962.pdf
- https://shirbandifelt.com/userfiles/file/18594939141.pdf
- http://euro520.net/userfiles/file/1631369284546488389.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161339b070313a---47617818276.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/804d8d8747c384a745f2fcd65fe67edb/figiwumifewapitigowuw.pdf
- https://299-45.com/CKEdit/upload/files/lozepeluxu.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/f801d1eb545a340e24dd6d005f8b2423/71076505075.pdf
- https://corcreation.twbiz.me/data/fckeditor/files/20210907_102357.pdf
- http://rbc-bezorgdiensten.nl/upload/duguxiguradikokul.pdf
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/43d885f15ca98a093629aa96890d1eb0/bowujasijenupomulafenaso.pdf
- http://quimis.org/js/ckfinder/userfiles/files/goxofereforifala.pdf
- http://kramor.bg/userfiles/file/46578339204.pdf
- https://abicecream.ru/ckfinder/userfiles/files/segorilulemizidudovurewe.pdf
- http://citescolairedeledit.com/include/file/70490550709.pdf
- http://adhunikjewellers.com/ckfinder/userfiles/files/75355738716.pdf
- https://luckyfood.itweald.com/uploads/files/6139894a38052.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=con+ww3+mod+apk
- 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_off0000dc66.bin0b8ff721c1bda77cfc64ed9109548f4986d7e3ec46e3e37d791384474bcab827 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC66 | 10300 bytes |
font_01_sfnt_off0000f3a3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A3 | 16792 bytes |
font_02_sfnt_off00010bb5.bin60eb9b712edb646955ac673768ea79a0608d84fadc296a8afb68a129112c5801 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB5 | 18008 bytes |
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