MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links, many pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the nature of the heuristics strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://philabc.ru/uplcv?utm_term=download+hd+streamz+apk PDF link annotation
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/asukfkk8elrmd6ngr8dt34b074/makisamaredorape.pdfIn PDF document text
- http://express-service-auto.fr/ckeditor/ckfinder/userfiles/files/bujabezibuzerukiri.pdfIn PDF document text
- http://studio70.eu/userfiles/files/rokidamedigasapijejukif.pdfIn PDF document text
- http://promocode.lu/userfiles/files/86652526664.pdfIn PDF document text
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/bbac01d68b58e061fd4f1268f6327fb9/16402133318.pdfIn PDF document text
- http://sosnovgeo.ru/userfiles/file/loweponepa.pdfIn PDF document text
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/96320843439.pdfIn PDF document text
- https://cytokin.ca/upload/editor/file/sekezus.pdfIn PDF document text
- http://wwpokebar.com/uploads/files/wopuzu.pdfIn PDF document text
- http://bluebirdcanada.com/FileData/ckfinder/files/20210907_70058E2A4DC9287B.pdfIn PDF document text
- http://ore-processing.ru/d/files/39205075412.pdfIn PDF document text
- http://harckocsik.hu/userfiles/file/kesemupupozemepaweneseg.pdfIn PDF document text
- https://muzpony.de/obrazki/file/32577390791.pdfIn PDF document text
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/9d9ef9d758a249f04464c6d48e498de2/bibivuvomexikanum.pdfIn PDF document text
- http://sigmabhp.pl/userfiles/file/31881732367.pdfIn PDF document text
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613293c1d6852---rajamurinevutalusoz.pdfIn PDF document text
- https://zaindu.drogomedia.com/files/galeria/files/86240955834.pdfIn PDF document text
- http://elsekmont.eu/userfiles/file/xesarutemofedimebaxuj.pdfIn PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614133f1d594b---36233424390.pdfIn PDF document text
- https://thietbixaydungcantho.com/canthomobile2/public/images/sanpham/files/duvatusaliwesavir.pdfIn PDF document text
- http://pravkniga.ru/files/userfiles/files/26764570759.pdfIn PDF document text
- http://sparkpro.lv/content/file/jitux.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_off0000b48f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB48F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cca1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCA1 | 15200 bytes |
SHA-256: 600ce9c1ce77c8f47ce6c14aa45b87419ab773f5a6848c94ca07c2048cd8d10f |
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font_02_sfnt_off0000f2c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C7 | 10804 bytes |
SHA-256: 8507dca28d5c4bbbbfe36f9d1783a3e54f01ab7536c5064347b230f9b5c6728b |
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