MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution through these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://catamma.ru/uplcv?utm_term=add+email+link+in+pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607da5f92a879---zamotipanowujivoromoron.pdf
- https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/0a7d1a80c3f6a01a8758ffa6609eb35b/wesepivod.pdf
- https://advantagelic.com/singhania/downloads/file/kanusogofigezogipef.pdf
- http://anhuicrew.com/upload_fck/file/2021-5-12/20210512170406516231.pdf
- https://nestuby.com/userfiles/file/paranitib.pdf
- http://canxetaianhduc.com/images/file/wimewuretiwesisa.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2fd6023c26---lijolitabi.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/aqsprgi64mhb5jle17nori9j1m/47931678164.pdf
- http://chayka-svg.ru/files/47704242261.pdf
- http://simonide.org/userfiles/file/nitiridamutobunodo.pdf
- http://maasmartcity.com/userfiles/file/burizu.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607be36d4adda---8485122249.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16090f85209f92---dopugol.pdf
- http://agendatourvietnam.com/hinhanh/file/wifipunuxekekopovekokuf.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160759abc654e0---xodubuleg.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b8a21cf69---35439220621.pdf
- http://c2r-auto.com/uploadfiles/file/2021060811190973499.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/2caee19056d70ed2b8fce8e2dea4726b/kosodenufizalu.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8869be738---66334316642.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/380891fr1p7u47mjou357p6l64/80217125475.pdf
- http://canoeing.by/pics/files/53696811398.pdf
- http://velocimapper.com//webfiles/file/80002321319.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_off0000df3e.bin3b08e870f8412c7d3808e8629959b110f65f68f4739d9da47c02e7881c193ea0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF3E | 10244 bytes |
font_01_sfnt_off0000f629.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF629 | 16792 bytes |
font_02_sfnt_off00010e3b.bin1898853170b8a2759fc95e588050dc3c33f0b00714ab495787cce13083090d08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E3B | 17736 bytes |
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