MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised CMS upload directories, suggesting an attempt to host or distribute malicious content. The presence of external URIs and a link farm indicates a likely phishing or malware distribution attempt, potentially leveraging a spearphishing attachment vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://medarbindia.org/ckfinder/userfiles/files/nagesa.pdf In PDF document text
- https://davidfauquemberg.com/home/fauquemb/david/bbdg_site/userfiles/file/79353114977.pdfIn PDF document text
- http://sarljarry.fr/userfiles/file/1023622678.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/675874929106432cd0061d979bf99fe4/26099971470.pdfIn PDF document text
- http://agt.es/files/galeria2/files/99175849309.pdfIn PDF document text
- http://juncheng.tw/upload/files/suguwaxixufotuzuvebufage.pdfIn PDF document text
- http://symbioticlifetech.org/attfile/fckimg/file///20210909193724_148584142.pdfIn PDF document text
- http://lyzph.com/userfiles/file/Fl202109060301242492.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/gopb9g56km8rhhe7lm81863l2n/65878930463.pdfIn PDF document text
- http://kaiyudachem.com/filespath/files/20210909123624.pdfIn PDF document text
- http://korvet-sp.ru/userfiles/file/5052006364.pdfIn PDF document text
- https://ghnservizi.com/file/92851278294.pdfIn PDF document text
- https://aptitudeclass.com/ckfinder/userfiles/files/80755503467.pdfIn PDF document text
- http://webbuilders.com/files/file/begeguluraxepowegazelix.pdfIn PDF document text
- http://e-hematologica.pl/users/file/namuzeduperamubimak.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613375a53eb40---74260712658.pdfIn PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132e9f6ed0df---juvoliwixutofajo.pdfIn PDF document text
- https://gretajensen.com/ckfinder/userfiles/files/bupiparipeben.pdfIn PDF document text
- http://peterpan1996.it/userfiles/files/8415378568.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/03e56674907ebcca5456f38929905a6b/zofalesobo.pdfIn PDF document text
- https://clubon.top/uploads/files/72428112130.pdfIn PDF document text
- http://soncongnghiepjotun.com/media/ftp/file/52726510774.pdfIn PDF document text
- http://suliaok.com/v15/Upload/file/20219101957454174.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=mcpe+2020+apkPDF 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_off0000c137.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC137 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d94d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD94D | 9968 bytes |
SHA-256: 316bf2321630331bb8f57638d0efe5e704db79f6d254fd0dac8bd48fd3ba1dbe |
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font_02_sfnt_off0000ef92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF92 | 16840 bytes |
SHA-256: 848d317ef2146860b6041951b2447908028cd671f31672f9d795e5f8938e38d1 |
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