MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of links, many pointing to external websites hosted on compromised WordPress installations or disposable domains. This structure is characteristic of a link farm used to distribute malicious content or conduct phishing attacks. While no scripts were explicitly extracted, the PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the numerous unknown reputation URLs suggest a malicious intent to redirect users to potentially harmful sites. The ML classifier and ClamAV detection further support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/rang8gji8tc5nldtf8ubhko292/20137997602.pdf In PDF document text
- http://all-pass.com/folder/editor/file/49215635886.pdfIn PDF document text
- http://rafaelokazakov.com/file/seweduz.pdfIn PDF document text
- http://www.siposferenc.hu/html/26672864660.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/e2c94ea1afdb7d707c66bb10437508dd/60206921467.pdfIn PDF document text
- http://allaboutdowney.com/userimages/panofegewozasaga.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/337d0b6a8d632a71de0d066f756aeac1/8736024167.pdfIn PDF document text
- https://stdtekstil.com/upload/ckfinder/files/30484802080.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799f979af74---dowakutotijuz.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607604717e097---sonalurevaminuviro.pdfIn PDF document text
- http://alltechsro.cz/files/71732339693.pdfIn PDF document text
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/ade67fe6c28a3e962c1f112681ef46e3/satizatojabubexakimes.pdfIn PDF document text
- http://run2endalz.org/clients/2/2b/2b4973775a35d8819257a28a16fdea67/File/81439807078.pdfIn PDF document text
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/epihjs9ohb96q33saoh6fom17c/zinufe.pdfIn PDF document text
- http://aven.su/userfiles/file/ginisarojorek.pdfIn PDF document text
- http://kameleonhastanc.hu/files/file/fudumibe.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.info/upload/files/44958879756.pdfIn PDF document text
- https://www.reflectionuk.com/wp-content/plugins/super-forms/uploads/php/files/re04paip9da4anlrgegaihua7m/jevopajulu.pdfIn PDF document text
- http://goref.ru/files/file/tomuvenodojefekogelosi.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5207912a27---girorezokaduzarolojani.pdfIn PDF document text
- http://hoskinspugs.net/clients/40498/File/wivoweziwovu.pdfIn PDF document text
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/615843a066462d392047052061483ea5/kinikidewabivaputexe.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/8a1h4d4kf02kc69ab9mu9o1cuj/59748506539.pdfIn PDF document text
- http://royalwedding.jp/images/blog//file/xedifitarelebejatumigaki.pdfIn PDF document text
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5958edf90---faxulitiwonediwagatifuwe.pdfIn PDF document text
- https://hazeloyun.com/calisma2/files/uploads/47343993555.pdfIn PDF document text
- http://perrymanreunion.com/clients/f/f8/f8644f0eb9578147d5589f75b8c3e300/File/99555376954.pdfIn PDF document text
- https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/ae03c47ddfc33938cc0cdac002b13a29/5461185925.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=how+does+energy+flow+in+an+ecosystem+explain+in+your+own+wordsPDF link annotation
- 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_off00010e5a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E5A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001266c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1266C | 17392 bytes |
SHA-256: 625b4f2a1f9df2c6d511439e814310d099c16ccadb5b2ebac344970adf035cf3 |
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font_02_sfnt_off00015461.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15461 | 11356 bytes |
SHA-256: 1f61f9e05bc8889afb0e9270eb2f73ecd85798ecc225fde447c16db79409cdc6 |
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