MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, indicating a link farm designed to obscure malicious destinations. ClamAV and ML classifiers identified this PDF as malicious, specifically flagging it as a phishing trojan. While no scripts were directly extracted, the structure suggests it's designed to redirect users to potentially harmful content, aligning with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://luisacortesearchitetto.it/userfiles/files/piwexumed.pdf
- https://optimustelecoms.com/ckfinder/userfiles/files/fisaj.pdf
- http://studioguidobarbieri.it/userfiles/files/61804142780.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aac6580eef0---febovosukal.pdf
- http://cathyknightwaite.com/ckfinder/userfiles/files/gupod.pdf
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa39d0b5ec9---kasedivaxezuxumajefuze.pdf
- http://colegiosantarosa.com/uploads/imagem/file/91202201050.pdf
- http://compow.net/ckfinder/userfiles/files/buseparojelod.pdf
- http://china-zzld.com/uploadfile/file///2021071016271175.pdf
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/b76dee77d5a1dcddd3c14a575af6ff80/patabuzewuponobowe.pdf
- http://tomaszskiba.com/userfiles/file/39325357064.pdf
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/2de6d6d052ee14b8876efc3b5a62f12a/42271393035.pdf
- https://ms01bet.com/contents//files/verikorisa.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/b1e4be6a86a5b370cb21a379189b7694/28501346888.pdf
- http://xboxheerlen.nl/userfiles/file/14207106186.pdf
- https://andrejc.si/files/file/26801322129.pdf
- https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/2d1d20f1d56e55f1c801bd09a2f0f897/25405460408.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160efe7539d9c5---46835656953.pdf
- http://wtmongolia.com/materials/file/95973122189.pdf
- http://bilmatbasim.com/userfiles/file/16930956736.pdf
- http://hoanhaochemical.com/uploads/files/75240493190.pdf
- http://poultech.net/d/files/83752836236.pdf
- https://steklo-shik.ru/userfiles/file/25630543836.pdf
- https://mttrasportisrl.it/dati/upload/file/radapenuma.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=numerical+analysis+mathematics+of+scientific+computing+3rd+edition+solutions+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_off0000fd3a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD3A | 16792 bytes |
font_01_sfnt_off00011551.bin2701f39fa21afee8d592def58a961ef6fe7aa38e4b8748ee133b6e6e863427f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11551 | 11432 bytes |
font_02_sfnt_off00012ff0.bin986c859ff2e16e990e8093f3587a8250645f8c983a1f189ed18af3db98eb46cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FF0 | 17800 bytes |
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