MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to PDFs hosted on compromised WordPress sites, indicating a link farm designed to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier's high score strongly support a malicious intent. While no scripts were explicitly extracted, the structure and URL patterns are consistent with phishing or malware delivery campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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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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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=how+to+fill+capsules
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/489645df3623d9b92046b71c989b5698/83970907200.pdf
- https://aildf.in/userfiles/file/35629374937.pdf
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/a8mipfkpmum61j8e7pc19jk9ei/buworagijenurofovigu.pdf
- https://vegas-shop.net/uploads/files/91575559586.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/2a9db69aabc7d52f4d98127385707ac1/93104771038.pdf
- http://drive4smilesontario.com/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/27170710075.pdf
- http://superplasticizer.cn/d/files/fifutakisew.pdf
- http://mlsconsulting.net/cms/files/File/89921859056.pdf
- http://nutrizionisti.eu/public/thread/risorse/file/pedatimati.pdf
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/6e957f832f3e9ee7b3c41439df3407fd/80065826520.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160adbb87b1fef---vepareziludelo.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160d98f3bb498e---jubov.pdf
- http://tvoirostov.ru/ckfinder/userfiles/files/15790924859.pdf
- http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/7620608808.pdf
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160fdd96d3520f---10701056420.pdf
- http://bettaletroom.com/file_media/file_image/file/4855883525.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba158afa0c---23835463762.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a00506270c7---vubitigamosojunavesenefos.pdf
- http://sumosushingrill.com/uploads/files/67108704594.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/f8da6d6d4d03fb24603b48547937e8d9/86004967399.pdf
- https://protrialse.eu/files/files/jewibikarafukol.pdf
- http://kalmi.ru/upfiles/files/94269720219.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f1d2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D2 | 16792 bytes |
font_01_sfnt_off000109e4.binbb3a2c8b13ae7b6b106bdf25664d27009f3f67d8795e047f7112582ce3b7b357 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109E4 | 17184 bytes |
font_02_sfnt_off00013680.bin68fa27849c378da3c98c8779aae9856c9543b615d7298f838d9be721f959aa0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13680 | 10444 bytes |
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