MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. No scripts were extracted, but the overall structure points to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://krisoc.ru/uplcv?utm_term=branches+of+artificial+intelligence+pdf PDF link annotation
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f8ed1c7b9---76762441373.pdfIn PDF document text
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/8a988ac845038aeabb522824b8d775bd/fudigosom.pdfIn PDF document text
- http://pc75.net/upfiles/file/1620911720.pdfIn PDF document text
- http://kennedy-jackson.com/clients/f/f7/f78508644b517540cdb1549d93860f53/File/nefesufefalim.pdfIn PDF document text
- https://remont-bez-zabot.ru/files/file/24968952065.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc9da228c7---1355583646.pdfIn PDF document text
- http://renovfab-menuiserie.com/userfiles/file/gajupetoz.pdfIn PDF document text
- http://pn-tech.net/userData/board/file/wokelodemijamedixelibasat.pdfIn PDF document text
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090879bd0fa5---liduromosebipodazasoxavom.pdfIn PDF document text
- https://enilubricant.hoakhanh.vn/uploads/image/files/80514855128.pdfIn PDF document text
- https://bhsbeacon.com/FCKeditor/file/bifozavulifuke.pdfIn PDF document text
- https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/1cfcc70253e8ce756948907141f069c5/48225839600.pdfIn PDF document text
- http://reversetheclocknow.com/ckfinder/userfiles/files/78347706865.pdfIn PDF document text
- http://littlepearlspublishing.in/data/eimages/file/lixisisefanotetexare.pdfIn PDF document text
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/uqtot0jikll5r2156i7flllr24/27883978625.pdfIn PDF document text
- http://sanarina.de/ckfinder/userfiles/files/xobolirokamile.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16107e6218c42e---5951893198.pdfIn PDF document text
- https://activepymes.com/pub/file/poxukokujul.pdfIn PDF document text
- http://pantanalmsnews.com.br/ckfinder/userfiles/files/kusujasatu.pdfIn PDF document text
- https://fitness-sport.it/userfiles/file/72329001202.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/busunuxasoxige.pdfIn PDF document text
- https://namdolove.com/FileData/ckfinder/files/20210816_149DC356575D62C4.pdfIn PDF document text
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/24df162b0bbad74bd30479c9a0861ed9/fixepalupedadurogovaziwu.pdfIn PDF document text
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/c15f31d06024a9a186c052e0fbfd2e57/zefawuronid.pdfIn PDF document text
- 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_off0000f33e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF33E | 10952 bytes |
SHA-256: ea1b94005dae7a4482a91206a2679cf4f3462ce5b0fa909f5b6262d1de0c905a |
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font_01_sfnt_off00010c5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C5C | 17992 bytes |
SHA-256: 4cd42e17e4c474a942c4f3b7e2d201e21e19befa889b3d658e51e77c16fd7010 |
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font_02_sfnt_off00013ac0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AC0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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