MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=quest+game+android PDF link annotation
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/vavegixuzepinufesevu.pdfIn PDF document text
- https://pmeds.us/userfiles/file/zapiv.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e79b9b4a04---nukagonama.pdfIn PDF document text
- https://kidneystonetreatment.in/userfiles/files/84401179137.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae8c51f404---nidegegeripalukad.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/zuzapuzazamatu.pdfIn PDF document text
- http://media-production.net/admin/ckfinder/userfiles/files/15614032909.pdfIn PDF document text
- http://ecofincas.net/ckfinder/userfiles/files/duloso.pdfIn PDF document text
- https://doanhnghiepvietnam.org/img_duhoc/files/69506121323.pdfIn PDF document text
- http://rosritual.su/app/webroot/js/ckfinder/userfiles/files/18082108617.pdfIn PDF document text
- http://cosmik-kinoteatr.ru/sadm_files/fekikogi.pdfIn PDF document text
- http://studiovalentini.eu/userfiles/files/lofulezatufejugabo.pdfIn PDF document text
- https://cupanghitam.com/contents/files/9039085493.pdfIn PDF document text
- http://donauwell.at/userfiles/file/91856097038.pdfIn PDF document text
- http://gowowdeli.com/uploads/files/poziduzadefusude.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac9c92af24---pogizozifek.pdfIn PDF document text
- https://gloriamus.org/Uploads/userfiles/files/kukun.pdfIn PDF document text
- http://tcsklife.com/filespath/files/20210903105445.pdfIn PDF document text
- https://foodphotoshop.com/userfiles/files/zesesogamibimoz.pdfIn PDF document text
- http://adec-interiors.net/Uploads/file/63281460441.pdfIn PDF document text
- http://assushop.com/userfiles/assushop.com/file/davebuwawawakafirarizubej.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_off0000eeaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEAA | 10704 bytes |
SHA-256: a0d42078e61e8dbff3cfb742048fdc17907995b16018ef98efc2c57922348d7b |
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font_01_sfnt_off00010723.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10723 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011f35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F35 | 16868 bytes |
SHA-256: e42ab8bd6f2be5e6c8a33259e13f379e11bcebf9e364a8661b4a28fd44ee0257 |
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