MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious content or phish users. The presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic further support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609a877839e3b---gabutejubo.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/tr6pimhbcu5anu51ho8cstv8hd/zepivuwabim.pdf
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd33e316397---remosapetulunoboguwidili.pdf
- http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/4r0jlqtlnfl1fukce6f6vrnjht/93983781581.pdf
- http://asckhn.com/acskhn/userfiles/file/38407912254.pdf
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c59157de60f---25186947171.pdf
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/1t3l6us78aq72j90hr466hi212/49836770500.pdf
- https://jobtiara.com/files/files/77410215133.pdf
- http://savaksangida.com/resimler/files/46783547198.pdf
- http://corising.info/sa_upload/userfiles/file/20210826153847.pdf
- http://zaun-produzent.de/userfiles/file/17856219933.pdf
- http://orgue-chantepie.info/FCKeditor/upload/file/3168168059.pdf
- https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/3a05fef2c0b7c92d2346d490db112e0b/4546078103.pdf
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/10f1fc2eed2e087ba933bc03e45f2a76/wepevivof.pdf
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/c253b3c80a82cc17eebe76e6ebcf1e80/disemafazokukab.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/4e62956e2e0a3e8683bc9ac908316a3e/medosixesul.pdf
- https://isabellepieman.com/userfiles/file/45330951331.pdf
- https://deycaterers.com/ckfinder/userfiles/files/1773446326.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a5307d73b65---94379337456.pdf
- http://donateagift.eu/userfiles/file/pukudatalokubafuj.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f64c4ed75c---mafawazozipan.pdf
- https://fcksa.com/ckfinder/userfiles/files/xulujukugaxilarujelamo.pdf
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608738ab4bfdf---63660337985.pdf
- http://lt101shop.com/userfiles/files/pimulidevugu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=unearthed+arcana+5e+pdf+2019
- 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_off0000f04d.binfb453b44e05591bb72738bd8623f16f9864e577a7a74201178322e04d982b58b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF04D | 10896 bytes |
font_01_sfnt_off00010989.binca4d8f475275b83cba020d34aebe21e8ac89833b984a7ce4138bcee3d51ea3ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10989 | 17164 bytes |
font_02_sfnt_off000135b3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135B3 | 16792 bytes |
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