MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains a link farm pointing to compromised or disposable hosting, a common tactic for phishing or distributing further malware. The presence of multiple PDF link farm heuristics reinforces this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://nfrostov.ru/upload/files/gifabebakuworot.pdf In PDF document text
- http://xn--b1afbmo0alc.xn--p1ai/ckfinder/userfiles/files/pugazevepuwunimifozeseti.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/e0412f32e8d06153e014a68502428117/biviwom.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/18782811916.pdfIn PDF document text
- http://conditum.nl/userfiles/file/fovapoxasejudojosumawozi.pdfIn PDF document text
- http://www.jysunshine-hotel.com/up_files/file/89963297396.pdfIn PDF document text
- http://tndgdemo2.com/ckfinder/userfiles/files/65143296174.pdfIn PDF document text
- https://gmnavarra.es/ckeditor/files/94586921115.pdfIn PDF document text
- https://rugsdirect4u.com/uploadedfiles/file/gibesenag.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161499525d1474---paxawu.pdfIn PDF document text
- http://angelcabrera.com/FCKfiles/file/vewupikege.pdfIn PDF document text
- http://beerskiboot.de/img/upload/file/karevike.pdfIn PDF document text
- http://romovi.net/sgi_userfiles/userfiles/files/vikilaperosokuxizinikuxa.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/vajetumezojelarurekiwofen.pdfIn PDF document text
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16140828bcbf5e---roluzulimeveduro.pdfIn PDF document text
- https://ckfinder.pamlskovnik.cz/ckfinder/userfiles/files/43094182370.pdfIn PDF document text
- http://vdi.vn/userfiles/file/rikanuloxotunupavow.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614b2fca91a46---911730078.pdfIn PDF document text
- http://www.moyekolodin.com/files/javebesovuxe.pdfIn PDF document text
- https://egyediajandekotletek.hu/mvc/userfiles/file/19107408277.pdfIn PDF document text
- http://parateam.cz/file/todososupizotumi.pdfIn PDF document text
- http://alexlunacoach.com/img/editor/file/52021815762.pdfIn PDF document text
- https://alwillislifecenter.org/ckfinder/userfiles/files/xatuvinis.pdfIn PDF document text
- http://vizugy.hu/uploads/files/files/fudanajib.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=play+minecraft+bedwars+online+freePDF 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_off0000b3a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3A2 | 16076 bytes |
SHA-256: 2c976e0a2f7a094f6a0b70e1ada33ba76817f49e26773a85151a0ba585a6eb75 |
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font_01_sfnt_off0000dc93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC93 | 10976 bytes |
SHA-256: 1026893cb4bf412ce88208fb23e32b7f8b4611c1804878680b490c866408d4c8 |
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font_02_sfnt_off0000f622.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF622 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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