MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous embedded URLs, many pointing to compromised WordPress upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and the ML classification strongly support a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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=net+framework+3.0
- https://ms01bet.com/contents/files/54753293524.pdf
- http://tscyw.net/userfiles/file/20210901131916_3vy48y.pdf
- https://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/79613555573.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb155e2f12---33837826988.pdf
- http://maradonasalud.com.ar/ckeditor/ckfinder/userfiles/files/badawewatisixavi.pdf
- https://eltdb.com/UserFiles/files/falipape.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613067847382c---71777282694.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161441e03e582d---32791057397.pdf
- http://nissanotogovap.com/uploads/images/files/winifezomizizabinazexute.pdf
- http://tumakuruvoice.com/tumkurvoice/ckeditor/ckfinder/userfiles/files/bibex.pdf
- https://muratay.nl/userfiles/file/67327232125.pdf
- http://studiotecnicodavico.eu/userfiles/files/gefojavijubeseruzukomenos.pdf
- http://studiolaviano.it/userfiles/files/18369935880.pdf
- https://shieldtech.cz/ckfinder/userfiles/files/48191123557.pdf
- http://spartapr.com/images/upload/file/tepizewiv.pdf
- http://www.dereformasenalicante.com/archivos/files/17468357733.pdf
- http://adwokaci-pila.pl/userfiles/file/rirafuwewejusiveto.pdf
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1612f921f3a06b---60405476288.pdf
- https://detectagsafety.com/ckfinder/userfiles/files/jadorerisibanid.pdf
- http://demirlermetal.com/resimler/files/5574486634.pdf
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/bdcebffcc9e0f9054996edc87d0436a7/70093490328.pdf
- http://siciny.pl/userfiles/file/97626876167.pdf
- http://esipro.be/userfiles/file/lenegobizo.pdf
- http://resortvillairene.it/userfiles/files/62514148566.pdf
- https://silverlabpupsforsale.com/userfiles/files/53192691990.pdf
- https://bluza-shop.ru/content/File/rotosute.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_off0000dca4.bin2416195dc6af877b586c35e5ff6bfefd0f0ed512ec66568659f05096628625f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCA4 | 10480 bytes |
font_01_sfnt_off0000f4a9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4A9 | 16792 bytes |
font_02_sfnt_off00010cbb.bin2eb9baa6a75ab467a58d65059fced37250466a780dbbedea61ba170d9438a5c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CBB | 17948 bytes |
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