MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to websites hosted on compromised WordPress installations, identified by heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the link farm structure is a common tactic for initial access.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/60aa9728d5e33acefbc08143ec543e60/54115073771.pdf
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/0ef21ca583e7ef8f7d6bf919e9878928/zijuruv.pdf
- http://aps-mes.com/files/file/foposatipezetujesane.pdf
- http://aurora-c.jp/files/files/jazilipep.pdf
- http://yossy.biz/userfiles/file/24157128221.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160921aa74f3a2---87852273017.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160f446c4d9694---biriwiwanakoba.pdf
- http://bezpiecznamlodosc.org/files/file/39030451410.pdf
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a956156998f---53178581745.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607043a4dfed7---suzabutevezot.pdf
- https://maspacientes.es/wp-content/plugins/super-forms/uploads/php/files/hcaak3apvtqmg2r88pimvmlnmu/jajazimelufadevajamisinor.pdf
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609b263caf991---12213532677.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160703e6f0875c---gupelolo.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096a250ae9b2---dovot.pdf
- http://bezagsecurity.cz/userfiles/12902210565.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608d64cd4a3cb---81635586426.pdf
- http://giga.sk/storage/file/vufopekoludefubupa.pdf
- http://halongbaycruises.org/upload/files/xirapowowokikidasuwufi.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/f2a1128dceec67b1372cdea19f6061e2/89988078212.pdf
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/10978641376.pdf
- http://www.feniuniversity.edu.bd/app/webroot/ckfinder/userfiles/files/5710446098.pdf
- http://microsolder.hu/userfiles/files/78922578046.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=costco+ham+cooking+instructions
- 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_off0000f85c.bin672ee692de2a9339354afe4a5f683bc6952dae93dccb28079cda11a4dbcc3ebf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF85C | 18268 bytes |
font_01_sfnt_off0001287a.bin9c97c54b526c1780e27230847878a04febcf63bd2a6dcc41f84e8eba902b90ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1287A | 10724 bytes |
font_02_sfnt_off000140fb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140FB | 16792 bytes |
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