MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some hosted on compromised WordPress uploads. The presence of numerous URLs, including those with 'utm_term' parameters, suggests an attempt to drive traffic to potentially malicious or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://oniceh.ru/uplcv?utm_term=nintendo+2ds+roms PDF link annotation
- https://nevjegyzek.eu/uploads/file/japesasogujok.pdfIn PDF document text
- https://lanna-flyingclub.com/ckfinder/userfiles/files/16508950432.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614067fe5b0d3---90499079147.pdfIn PDF document text
- http://aow.infogestnet.it/ckfinder/userfiles/files/89220208668.pdfIn PDF document text
- http://31kouqiang.com/userfiles/file/1631208097.pdfIn PDF document text
- https://thucphamtruongxanh.com/Upload/files/94167682908.pdfIn PDF document text
- http://flightshop.jp/images/blog/file/vejujelunobunizimogakepim.pdfIn PDF document text
- https://nslogisticservice.com/userfiles/files/soxowuko.pdfIn PDF document text
- http://theponghop.com/upload/files/mazorepopikuxer.pdfIn PDF document text
- http://naplesredeals.com/userfiles/files/3521105276.pdfIn PDF document text
- http://technology-mp.it/userfiles/files/liwegigo.pdfIn PDF document text
- http://www.enfersalus.com/ckfinder/userfiles/files/jonexupezalusik.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16137371ed72a2---kiverejolexujafuwajaz.pdfIn PDF document text
- http://starroadchina.com/userfiles/file/59831119550.pdfIn PDF document text
- http://www.fd.ntou.edu.tw/ckfinder/userfiles/files/jenodakabokojotojejofo.pdfIn PDF document text
- http://naturallabs.de/userfiles/file/29913245658.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/9d0803f8b0d656018a882d3c8867afc3/64665340201.pdfIn PDF document text
- http://lukasikgroup.pl/Image/files/35385260421.pdfIn PDF document text
- http://kaies.cn/upfiles/210907070224508343i799gg.pdfIn PDF document text
- http://gospelpour100voix.com/fichiers/newsletter/file/41301826246.pdfIn PDF document text
- http://debrecen.varosom.hu/userfiles/files/zejusini.pdfIn PDF document text
- https://www.renfrewareahealthvillage.ca/ckfinder/userfiles/files/domalisuf.pdfIn PDF document text
- http://xn----0tbbbfo0f.xn--p1ai/userfiles/file/vigaxeponididuxemusid.pdfIn PDF document text
- http://omni-links.com/images/blog/file/4788296338.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_off0000e024.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE024 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f836.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF836 | 19880 bytes |
SHA-256: 25558d1751c0add17447dc704c0b4e26db80e758dae2be8060a533aac44b0cba |
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font_02_sfnt_off00012c46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C46 | 10296 bytes |
SHA-256: d70f826df7408e09e9155c2111595130baedb336cd0d528a772b7e954d389442 |
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