MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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=1111+vpn+apk+free+download PDF link annotation
- http://rioairporttransfer.com/ckfinder/userfiles/files/25231616798.pdfIn PDF document text
- http://jsushibrea.com/uploads/files/xirelorademabosogomokajo.pdfIn PDF document text
- http://npas.ru/pic/file/wobotabudaza.pdfIn PDF document text
- http://springgalleryng.com/Images_upload/files/51970140023.pdfIn PDF document text
- http://9jamail.com/FCKeditor/editor/filemanager/connectors/userfiles/file/95116255093.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/161363748d8d28---27092557122.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/c3bd1462ce09760752d3daa9835399ee/24350262220.pdfIn PDF document text
- http://www.nagsa.es/ckfinder/userfiles/files/28104808197.pdfIn PDF document text
- http://ukkies.be/userfiles/file/mudofal.pdfIn PDF document text
- http://lexuspolymers.com/assets/ckfinder/userfiles/files/piratode.pdfIn PDF document text
- https://cuatudongnhatrang.com/uploads/files/2075501243.pdfIn PDF document text
- https://www.q-jin.ne.jp/ckfinder/userfiles/files/navivelezubofasu.pdfIn PDF document text
- http://gajagotour.com/UserFiles/file/62281466322.pdfIn PDF document text
- https://floresdeserrezuela.com/aym_image/files/gaxesavulugetizoledanuf.pdfIn PDF document text
- http://esejsc.com/upload/files/90925684768.pdfIn PDF document text
- https://classykitchen.pl/web/uploads/files/zelabedoxidire.pdfIn PDF document text
- https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/73610341499.pdfIn PDF document text
- http://rcp-ranstadt.us/files/65875315524.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/viab1l28o8g9p1l04un1qv0b6q/ruxovotibovesunudosifiv.pdfIn PDF document text
- http://prplus4u.com/ckupload/files/mumatajuxuruzaliroxogosu.pdfIn PDF document text
- http://jia-longsofa.com/uploadpic/jialong151126/files/202109100705558279.pdfIn PDF document text
- http://marcelponjee.nl/ponjeefiles/file/90663432130.pdfIn PDF document text
- http://esejsc.com/upload/files/12447559807.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_off0000d3ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3CA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ebe1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBE1 | 10332 bytes |
SHA-256: 91e9f363d2d70fba5a98f9ab94a70907fc65cae2e3c1fcb67f58ef698ed6dc1d |
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font_02_sfnt_off00010361.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10361 | 17832 bytes |
SHA-256: 4fa1beb24e46e8492470003fa6fa37ee14e6a3f1fef0e628dc2bd11691ed8ad7 |
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