MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or malware distribution intent. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, further obscuring its true purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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=grey%27s+anatomy+season+17+online+putlocker PDF link annotation
- http://spodne-pradlo-2bpoint.sk/UserFiles/File/vajoroxexa.pdfIn PDF document text
- http://njxinbell.com/upload/files/81224521541.pdfIn PDF document text
- http://24x7taazasamachar.com/assets/ckfinder/core/connector/php/uploads/files/15035325410.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/zaginurasidafaluv.pdfIn PDF document text
- https://artasedanasingaraja.com/uploadfck/file/82533385514.pdfIn PDF document text
- http://canadianrockies.ca/files/file/46736070.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/jajopokulavenota.pdfIn PDF document text
- http://advocaatindex.nl/images/uploads/wanepazugixokivafuw.pdfIn PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a32467bbd0---xoxasewilebofinerasujaraj.pdfIn PDF document text
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/fu6kuk3bifkaujdbc60p5nj6cr/lexini.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/a703c1f3bce4b40b97b7e0634ba70484/narezeteseruwete.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/84a6ddf457f175cdec53240cedf673f8/34258394505.pdfIn PDF document text
- http://occahomesearch.com/userfiles/files/xigeseturilofemupuxar.pdfIn PDF document text
- http://alltechsro.cz/files/35616391210.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/2d5d6eec0542e621d73d4d01d3bbf949/38108133301.pdfIn PDF document text
- http://ambartakip.net/belgeler/file/zisusijidivizavimamejujo.pdfIn PDF document text
- http://yourtruck.be/upload/ckeditor/file/29135228021.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efc29bd558---xasunuzokumivitav.pdfIn PDF document text
- https://tes-sys.com/uploads/ckfinder/files/20210906/16309121522343.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_off0000d407.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD407 | 17972 bytes |
SHA-256: 6d7f9444ecbd0fca7f7775cfc93778b839c26d96c0d554092985cc06b38a8ffe |
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font_01_sfnt_off00010293.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10293 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011aaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AAA | 11016 bytes |
SHA-256: da6513a86311bf5d021abc19fea11370052e36ebf6e7c8374d749c03e5947d59 |
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