MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS uploads. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://booknowrentalimo.ch/userfiles/files/nuzefenonawepumamebibufa.pdf In PDF document text
- https://ngusacdon.com/upload/files/powazegilewamufezanuxaw.pdfIn PDF document text
- http://georgewongdesign.com/gwd/upload/files/98189303826.pdfIn PDF document text
- http://sitoad.com/bbqjoekey/files/202109122029146315.pdfIn PDF document text
- http://mamitobe.ru/files/file/26446242369.pdfIn PDF document text
- http://oletrans.sk/editor_uploads/files/22291727669.pdfIn PDF document text
- http://falconfam.com/ckfinder/userfiles/files/torobuzeziwelema.pdfIn PDF document text
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/7ddcfc293931a61e12cde2c348c9d1da/paruvatoxenu.pdfIn PDF document text
- https://www.info-service.com.tw/plugin/ckeditor/ckfinder/userfiles/files/ripividubufamirafi.pdfIn PDF document text
- https://mimpishiosatu.com/contents/files/fufuguliwejev.pdfIn PDF document text
- https://textolinguisticsolutions.com/upload/editor/file/37196325879.pdfIn PDF document text
- http://matstravel.ru/userfiles/file/84266171062.pdfIn PDF document text
- http://kuhomania.ru/ckfinder/userfiles/files/49825922910.pdfIn PDF document text
- http://esistore.com/userfiles/file/sokafosubenujegoju.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150fa6cc1c6b---43257483905.pdfIn PDF document text
- http://clainvest.pl/userfiles/file/vejameludedekokewazafakak.pdfIn PDF document text
- http://ilsogno-bomboniere.com/userfiles/files/fisez.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bda67e0514---91934616249.pdfIn PDF document text
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/bbeb626dd0c20d0f9f41cdceb245e2b8/womininaxexemamudim.pdfIn PDF document text
- https://www.agencesramos.com/ckfinder/userfiles/files/vigedevojefositojux.pdfIn PDF document text
- http://salonorganica.ru/upload/files/zokuf.pdfIn PDF document text
- https://drddvichitra.com/userfiles/file/pupuvu.pdfIn PDF document text
- http://schturman.ru/files/files/dajigagotuxafo.pdfIn PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/783f16229aab7aac11b5d1d61c1569fe/37824101900.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=opsec+test+answersPDF 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_off0000b3c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cbd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBD5 | 18500 bytes |
SHA-256: 950e95fee630babb50fdd2761be5038d71f3ecae3e743ea0c0ede87bd8cfd203 |
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font_02_sfnt_off0000fb0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB0D | 10220 bytes |
SHA-256: fe841949d4acf64eddfe323e81b2a58b9ea7ed3e087253d9ea483d076eeb3f42 |
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