MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to compromised WordPress upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and the nature of the heuristics strongly suggest this document is part of a phishing campaign or a downloader for further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://synerhu.ru/uplcv?utm_term=internal+phone+storage+is+getting+low+samsung+galaxy+ace PDF link annotation
- https://bearings.vn/images/ckeditor/files/81720047016.pdfIn PDF document text
- http://garantc.ru/userfiles/file/18487658157.pdfIn PDF document text
- http://asijskepotraviny.cz/files/file/tovasenudepolulexumemezig.pdfIn PDF document text
- http://go-pxl.com/uploads/files/suzazobawusa.pdfIn PDF document text
- http://pinturasoltra.com/images/slider/files/21599609320.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/lnk7gbbu39th7bn2iapohftiq0/44312562177.pdfIn PDF document text
- https://padservhosting.com/userfiles/file/kagulekini.pdfIn PDF document text
- https://lecachet.fr/docs/files/32950916048.pdfIn PDF document text
- http://banglenhospital.com/UserFiles/File/vokefenu.pdfIn PDF document text
- http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/1660468886.pdfIn PDF document text
- https://dursunguney.com/userfiles/files/zegafi.pdfIn PDF document text
- https://aspit.ro/imagini_ws/12712859699.pdfIn PDF document text
- http://gptools.net/userfiles/file/tesubakuz.pdfIn PDF document text
- http://eichler-kammerer.de/sazilivedorobiruze.pdfIn PDF document text
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/720dc45d31c549a3b0044d8c0b398f55/bufipe.pdfIn PDF document text
- http://sushibelovo.ru/files/wogezopuxejexofabelokilo.pdfIn PDF document text
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613441fb6341e---17109578357.pdfIn PDF document text
- http://terfigyelokamera.info/files/file/vajukofukavuxesiw.pdfIn PDF document text
- https://tarzminder.com/resimler/files/38105535756.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613390c8048ec---92199785884.pdfIn PDF document text
- http://fulepmark.hu/nyebu/fulepmark/userfiles/file/nipemifolekujudud.pdfIn PDF document text
- https://orrizon.ru/images/file/bibuwuwamiraluxut.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_off0000ebb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBB6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000103c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103C8 | 17840 bytes |
SHA-256: 11b0ce038357066edda2290c57fe445a6e4a7be7c8f5f96774574e2bbf0fa711 |
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font_02_sfnt_off000131f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131F1 | 11172 bytes |
SHA-256: d75ee2a38a38a7a7d8c321da04fb53b8e8d09277a666e748240dc7da2af9881b |
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