MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161312cc795359---telijasofurejekutepiv.pdf In PDF document text
- http://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/41833170839.pdfIn PDF document text
- http://omgmediatank.com/userfiles/files/dugemuduzare.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161311e34052ed---jotivalujegijakesopopupo.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/be545135fdd0b27d88058847e5a45533/muvedijoximimibovavosi.pdfIn PDF document text
- https://clinicscrm.com/img/files/gotewemojipiw.pdfIn PDF document text
- https://kolkatanagariksammelan.org/ckfinder/userfiles/files/kugebulor.pdfIn PDF document text
- http://votava2.altrodesign.eu/ckfinder/userfiles/files/44298305732.pdfIn PDF document text
- http://dade666.com/userfiles/202109file/2021090117232270554.pdfIn PDF document text
- http://esipro.lu/userfiles/file/litokawedusokopa.pdfIn PDF document text
- http://tevukasveza.lt/ckfinder/userfiles/files/63919280731.pdfIn PDF document text
- http://www.polni.si/Images/files/34780405585.pdfIn PDF document text
- http://xageunion.com/userfiles/file/bupibivakimikivetewa.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1612f18ae32d68---tapufapijumalumixapum.pdfIn PDF document text
- http://qhzs88.com/admin/fckeditor_upfiles/file/2021090508150680554.pdfIn PDF document text
- http://noithatachau.vn/webroot/img/files/jenatugunapubepamaridub.pdfIn PDF document text
- https://lyna-garage.com/htdocs/cljr/data/files/vepijilodamepawa.pdfIn PDF document text
- http://katachizu.com/img/news/files/40886978478.pdfIn PDF document text
- http://bigyikesmedia.com/home/xtremweb/public_html/consultinstitute/web/upload/files/96889772390.pdfIn PDF document text
- http://sz-nuoyi.com/Upload/file/2021090404503065933.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137dee6bec3d---93843350674.pdfIn PDF document text
- http://savvyais.com/userfiles/file/74386364763.pdfIn PDF document text
- http://hanyuchina.com/upload/files/44098916355.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/84000968637.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=apc+smart+ups+1000xl+manualPDF 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_off0000b9bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9BF | 17648 bytes |
SHA-256: 3a0be46c3ce8bff97011f72d2336b2fc43f3be7371207042005debbeb9b46a74 |
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font_01_sfnt_off0000e747.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE747 | 10548 bytes |
SHA-256: 31a9f85d8a9a8f7e3beaa4031ff14f21345c7ecda7671dce44053b4450813b5d |
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font_02_sfnt_off0000ff73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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