MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads, consistent with a spearphishing attachment attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://nomylo.ru/uplcv?utm_term=vss+to+pdf+converter+online
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/suompdfkjqumgcm8b4q6e3p2fp/ruxat.pdf
- http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jigajoxabopemezifeba.pdf
- http://balcimimarlik.com/resimler/files/motiwu.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160735977cfb2a---31858206192.pdf
- https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/cb17a0a30bf049dfb1bfc5807c825e39/70235342300.pdf
- https://locoffice.ru/userfiles/file/47631486389.pdf
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608c85dc872ed---93925788130.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b02794146e8---74544518589.pdf
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/iopu0q94eeot0v7efivheij6em/ponotuvasasupodix.pdf
- http://trustycctv.com/ckfinder/userfiles/files/safuxokajex.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160a7203b116a8---54134304992.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3a079053a---lamowalavaxagebimenok.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9eb1bf484---75176017485.pdf
- http://hndgyl.com/v15/Upload/file/2021611816543087.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c73c54490b---sefexizudedaj.pdf
- https://tmtteks.com/files/mojibupado.pdf
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/c4f07b08194e2c4aa320cc7735afbbb7/13682506868.pdf
- http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/56696491210.pdf
- http://nomorecpapmachine.com/userfiles/files/5410911927.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d07daba1e---23744943854.pdf
- http://klick-tipp.info/ckfinder/userfiles/publics/files/7995960266.pdf
- http://pspectr.ru/userfiles/file/luninazarozaze.pdf
- http://izdo.org/img/userfiles/files/5380042147.pdf
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/9800658874c411d6ae833a9cd5b98fc5/93074571599.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a68ee830a3f---gajafuditapirewevitekita.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_off0000c59c.bina03976292ae497171d728f48b4ffdc33d8ca7cbcf0f6aea5d9206748cf9dd358 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC59C | 16348 bytes |
font_01_sfnt_off0000f002.bin888ac631e73b0ddecd9baed5690feb22a50821119ac97a0f90b8de7c465817fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF002 | 10488 bytes |
font_02_sfnt_off00010803.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10803 | 16792 bytes |
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