MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics further supports the attack pattern of luring users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://krisoc.ru/uplcv?utm_term=moto+g7+supra+update PDF link annotation
- http://bowie.abwingsmd.com/uploads/files/17510129500.pdfIn PDF document text
- http://juditphotography.com/picture/userfiles/file/betidibibonubofoxobosobak.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1614b440a22deb---tesotegulubosikilesowovod.pdfIn PDF document text
- http://villacappuccina.com/userfiles/files/sosabizejudu.pdfIn PDF document text
- http://duocmyphamcongty.com/app/webroot/uploads/files/suvolizurasojudaderemina.pdfIn PDF document text
- http://d2dgroup.net/upload/files/62212584660.pdfIn PDF document text
- http://jawarakreasi.com/file/67833988829.pdfIn PDF document text
- http://prvugkh.ru/uploads/files/53274381000.pdfIn PDF document text
- http://komputerzagrosze.pl/userfiles/file/dopefo.pdfIn PDF document text
- http://metrominicabs.com/survey/userfiles/files/98402132353.pdfIn PDF document text
- http://torby.kbo.pl/ckfinder/userfiles/files/31846810300.pdfIn PDF document text
- http://misr-consult.com/userfiles/file/botamilotijakidipiva.pdfIn PDF document text
- http://westernmaki.com/uploads/files/vekaxibot.pdfIn PDF document text
- http://macabrey-luthier.fr/data/Files/76852436081.pdfIn PDF document text
- http://laxycoffee.com/upload/files/27253404842.pdfIn PDF document text
- https://limberhurstgallery.com/imageuploads/file/31625950721.pdfIn PDF document text
- http://fzsvybbs.at/userfiles/file/87634656351.pdfIn PDF document text
- https://kvzriu.org/images/file/pekajumenakiwisobe.pdfIn PDF document text
- https://4of100churchstreet.com/assets/media/files/59956000080.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/c99076df65a00c4c81cf250cd15b6eea/fipizakumotilesurabumuj.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614bffbbd3a45---38410974560.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_off0000bb9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB9F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d3b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3B1 | 17936 bytes |
SHA-256: 7c1d691d17440b523d3f0f5cc813206e731c08da541ea6981ea993f5112d04bc |
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font_02_sfnt_off00010237.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10237 | 10468 bytes |
SHA-256: d0aeb6232151e47272d7df438ba72c03b279531707d89135299bebaa3fae082d |
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