MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for exploiting vulnerabilities or delivering malicious content. Heuristics indicate it functions as a link farm, directing users to compromised WordPress uploads and other disposable hosting, suggesting a phishing or malware distribution scheme. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://afritransport.com/app/webroot/files/file/vanuniziridowolemabo.pdf
- https://tfsroanoke.com/home/tfs/public_html/new/ckfinder/userfiles/files/81748698832.pdf
- http://zl369.net/userfiles/file/30298373299.pdf
- http://art-ball.net/files/file/lubasemimafifoji.pdf
- https://ijacr.net/assets_admin/ckfinder/core/connector/php/uploads/files/58132026456.pdf
- http://www.sushmitamukherjee.com/fckimages/file/76286737488.pdf
- http://bpsstudio.hu/uploads/wugugogidujatad.pdf
- http://www.otevrenysklep.cz/ckfinder/userfiles/files/jipotar.pdf
- http://happinessgown.com/upload/users/files/78029052920.pdf
- http://kingsap.com/file_media/file_image/file/filarififowutamidenebikab.pdf
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161424301d166f---dugevumutulil.pdf
- https://clic-essc.ch/ck/ckfinder/userfiles/files/25002715174.pdf
- http://sgyscom.com/upload_fck/file/2021-9-16/20210916153141384020.pdf
- http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xopasevirosofuwase.pdf
- http://barcelonasixtytwo.com/userfiles/file/lagisefanozixi.pdf
- http://cc-loges.com/uploads/file/sotufomufuworokimen.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd3a361767---fifujij.pdf
- https://doctornhospital.com/banglanews24/editorsfiles/files/10047725639.pdf
- http://enidental.com/userfiles/file/20210902183231.pdf
- http://kredoteka.ru/uploads/file/31111071103.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b7d795141f---juvajokuzitifejafusale.pdf
- https://sfasg.jp/js/ckfinder/userfiles/files/45039509075.pdf
- https://acavacecio.it/userfiles/files/60803591646.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+fill+out+a+manila+envelope
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/50739ef34a5bd8f5affc16518523aaa1/23338188683.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_off0000b5a5.binf59cc26687369aa3b2e12d75bb7d432041c4e379ea62716f801dff0b36e375c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5A5 | 17080 bytes |
font_01_sfnt_off0000e1b3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1B3 | 16792 bytes |
font_02_sfnt_off0000f9ca.bina24e6195097f64acfcfefca30d6eb71267b4fe053fa214fc6ce61fd6706f0cde |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9CA | 10496 bytes |
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