MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting it's designed as a link farm to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly indicate malicious intent, with the latter identifying it as a 'Pdf.Phishing.Trojan'. The document body is heavily obfuscated and appears to be non-readable content generated by wkhtmltopdf, providing no direct user-facing lure.
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 http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/qnclum7o293p0cm49fglaqec66/12956001418.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/5610c60afd0fb0de466cb4910b3668f9/lawagudubov.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607be5a495302---54927220538.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160afc9d2075f0---vetuge.pdf
- https://www.ideaklinik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757231544d0---raxubamabasuvagojozurijav.pdf
- http://lacasedescaraibes.fr/file/1892231331.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160afeafb0a7a1---60448329605.pdf
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b2698b19c6---duxigiritokajiboda.pdf
- https://cncostruzioni.com/userfiles/file/19779775398.pdf
- https://irisapp.cn/uploadfiles/fckeditor/20210710/file/16258650596843.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160a9d0cce915b---rejidojosorekuxipobira.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608389beae0fa---12717245268.pdf
- https://mariellatriolo.it/public/file/zarebawubovizuzafefugeri.pdf
- http://www.lnk-creation.fr/upload/file/dejibudope.pdf
- http://alaskacounseling.org/clients/8/87/870ae3779d21e956d596131c1dd113ff/File/98263372980.pdf
- http://okzawidow.pl/img/upload/files/88180280331.pdf
- http://berallebags.com/UploadFiles/FCKeditor/20210507015242.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d43a6be1486---75556728152.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d592a215f---pezipunabero.pdf
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/83deda1f69514d69aaa9f50a959cbaef/wojizonof.pdf
- http://cpbnatation.fr/fckeditor/userfiles/file/19012785363.pdf
- http://progfin.pl/userfiles/file/samajopiweg.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=how+to+peel+boiled+eggs+perfectly
- 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_off0000e953.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE953 | 16792 bytes |
font_01_sfnt_off00010165.bin28e4aa6c47e4c0d56e4ba6207d3c7c548265274104f2a7dfa95db1b02febb29d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10165 | 18004 bytes |
font_02_sfnt_off000130cc.bin17f4d8123f038a047325139568ba62af0065a394730d0313f263fab74f381761 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130CC | 10860 bytes |
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