MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many of which point to compromised WordPress sites or disposable hosting, indicating a phishing or malware distribution scheme. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to distributing further payloads or leading users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://kotrackusa.com/fckedit_file/file///20210903_0_4_2.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/g7p7eeqbsa6ia3en5ujkenhvgl/56126649656.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/79f2f79b594f1b791cd19f0b77cda267/27964678617.pdf
- https://empezo.xyz/js/ckfinder/userfiles/files/54388108300.pdf
- https://machinex-machines.com/UserFiles/File/kazajatugusafetu.pdf
- http://beijingxinzhi.com/userfiles/file/20210523134500_570042817.pdf
- http://sluchatka-shop.cz/files/upload/files/pusiriwezijima.pdf
- http://2018.letnifestiwal.pl/ckfinder/userfiles/files/muvelumowit.pdf
- https://atlas-consulting.ro/fckeditor/fisiere/file/38781713053.pdf
- http://inhome360.ru/admin/ckfinder/userfiles/files/baxuxizop.pdf
- http://stluciachamber.org/uploadedImages/contentImg/file/47691283048.pdf
- https://postelezmasivu-ostrava.cz/ckfinder/userfiles/files/72489698538.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e267306be27---sonopewupotegigonirule.pdf
- https://farmacieitaliane.com/documenti/file/derunavadakegeri.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607a55c08776c---79423106541.pdf
- http://vuoncotichdep.com/upload/files/32330644547.pdf
- https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/1d9fedc8bbdf2374dc428d85a7f90558/38952992935.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606e8dd742759---fogasutujirujexigomida.pdf
- http://asja-doll.ru/userfiles/file/dilolujapikexokoxe.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160965a6e44338---84241124057.pdf
- http://usaoxin.com/userfiles/2021-5/file/60910652660.pdf
- http://brightwayconsultancyservices.com/userfiles/file/vomulif.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161309f0ea013c---87804261374.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=il+tiranno+valerio+massimo+manfredi+pdf
- https://easyown.ddproperty.com/datas/files/37864258671.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_off0000e2ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2AD | 16792 bytes |
font_01_sfnt_off0000fabf.bin2778c06863af414920989e3fb90609aefb86e19223c0a3e1e3c600ba99ea113f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFABF | 17656 bytes |
font_02_sfnt_off000128fa.bin5caacd596baf25a561e9ea35f9ca3d61c375408ecafffe8e06e16d0663175ff8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128FA | 10676 bytes |
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