MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. The embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution campaign.
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://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/7f82783991db7a111d59559317653539/95218922518.pdf In PDF document text
- http://volkshilfe-vlbg.at/images/content/files/29799406298.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/p9s99r6l1tpidh8k53vkj8g4bd/bixefuxivekebilapixixoxot.pdfIn PDF document text
- http://yorktownhs1987.com/clients/57482/File/sumawusav.pdfIn PDF document text
- http://virus-safe-zone.com/ckupload/files/wozijufafafixitiwutigeru.pdfIn PDF document text
- http://alpanelektrik.com/depo/sayfaresim/file/89032323854.pdfIn PDF document text
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/f4753dcc1e3a795efc57ce99daea2ea7/xekufamidonedatarisusuna.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-4-29/20210429041855208408.pdfIn PDF document text
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607758cb90ba2---desaputemoxovezokinerabox.pdfIn PDF document text
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/dd61bc79a0e2407ed486f716d65b2859/kikazo.pdfIn PDF document text
- https://nguyenthelong.net/userfiles/files/pirumigoz.pdfIn PDF document text
- https://ccaquebec.com/userupload/files/waxerulasovuxorolojir.pdfIn PDF document text
- https://pharmnet.cz/ckfiles/files/files/49123733996.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/9462005414.pdfIn PDF document text
- http://2440027.ru/upload/file/39610367053.pdfIn PDF document text
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/1e2106a7596d917807a476e580b69364/xabozebaxomofaned.pdfIn PDF document text
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/rsh9i5567m8a7qj3sp401vf8nr/27988719324.pdfIn PDF document text
- http://www.ettermanenterprises.com/ckfinder/userfiles/files/66188485556.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/jckt4mpa3q5iesorld75dikor6/leriwivebelu.pdfIn PDF document text
- https://chmelo.hu/sites/default/files/file/kizomuru.pdfIn PDF document text
- http://av72-reklama.ru/userfiles/file/162831030952e9d1aaa2225dd6bb16.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1608ace511f97d---94511565871.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608803175e7e8---tulan.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=ficha+biopsicosocial+para+secundaria+pdfPDF 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_off0000c613.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC613 | 18252 bytes |
SHA-256: 2f54c3a56ead012b23e0d0c72c75a057a10fc87be5c618abfa2a43827d5fe81d |
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font_01_sfnt_off0000f481.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF481 | 10836 bytes |
SHA-256: b99381be2b851856402d511ff83d0e14c10033c1f72dae8a61ea9bbb020249c1 |
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font_02_sfnt_off00010d27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D27 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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