MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the use of link farms for malicious purposes.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://medvor.ru/uplcv?utm_term=bubble+blaster+game+online PDF link annotation
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614012da4cfca---jemiwitotoge.pdfIn PDF document text
- http://osingenieria.com/images/admin/file/4114454880.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/86dd3eaf0bf4ede3f1c746b68fc45584/lakawifuworezisoka.pdfIn PDF document text
- https://yunglin.com/uploadpic/files/83888905054.pdfIn PDF document text
- https://equantumconsulting.com/files/files/ligirejesojajefo.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132ec1a9df3f---fokawimika.pdfIn PDF document text
- https://cemb.ca/upload/editor/file/dorabomigi.pdfIn PDF document text
- https://infotechloyalty.com/bot/ckfinder/uf/files/seduselezexatamewonoribeg.pdfIn PDF document text
- http://industra.sk/userfiles/file/22713685205.pdfIn PDF document text
- https://thietbixaydungcantho.com/canthomobile2/public/images/sanpham/files/jojusekibuzatixafaf.pdfIn PDF document text
- http://czyxchem.com/upload/files/4207555250.pdfIn PDF document text
- http://ordineveterinarivenezia.eu/userfiles/files/39900532631.pdfIn PDF document text
- http://jrecchina.com/ckeditor/ckfinder/userfiles/files/zukapezovivebo.pdfIn PDF document text
- http://wpchkg.com/upload/image/file/napulatimatosozajer.pdfIn PDF document text
- http://campingwithconvenience.com/files/files/18976837276.pdfIn PDF document text
- https://ymvii.com/admin/upload/files/32080912057.pdfIn PDF document text
- https://www.adom.biz.pl/ckfinder/userfiles/files/nejixanipidomef.pdfIn PDF document text
- https://mmeasar.com/mmeasarfiles/file/rawezigidikojudesaf.pdfIn PDF document text
- https://kaskad-74.ru/images/uploads/walezuwinusufozew.pdfIn PDF document text
- http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/lilad.pdfIn PDF document text
- https://www.thic.net/plugin/ce1/ckfinder/userfiles/files/najijobobojilijejokeb.pdfIn PDF document text
- https://belitour.ir/basefile/belitourir/files/99646628043.pdfIn PDF document text
- http://protok.pro/upload/files/xamokefepot.pdfIn PDF document text
- http://lideparts.com/userfiles/file/1630601526.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_off0000b8c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8C1 | 14964 bytes |
SHA-256: eb312771cc88e096834ffa2124ddfc88ce7d3fab84e154dbd2b7503162de9685 |
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font_01_sfnt_off0000de6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE6D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f684.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF684 | 10744 bytes |
SHA-256: db16b55ec0e0ae7ea94002d78e1123a891c0cb7db0575dddc27dd34a800d7d84 |
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