MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and presents a link farm pointing to multiple compromised or disposable hosting sites, suggesting an attempt to redirect users to malicious content. The heuristic PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM specifically indicates that the links are hosted on compromised WordPress upload storage.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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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://vistobrasil.net/uploads/file/wavabebevugo.pdf
- https://havadisname.com/upload/ckfinder/files/46903497201.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161411610b8c0f---14023712107.pdf
- http://gillsandgeckos.com/userfiles/file/50630320822.pdf
- http://ngoinvest.com/uploads/ckfinder/files/37645467897.pdf
- https://almuhja.com/ckfinder/userfiles/files/guwolizumumawipufila.pdf
- http://volvo-cars.jp/js/upload/files/73014236737.pdf
- http://joomlacode.org/fckeditor/editor/filemanager/img.php?file=file/23137547457.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613df7de5b425---22675780414.pdf
- https://drhuanghair.com/uploads/files/202109010203206386.pdf
- https://www.khaosanpools.org/ckfinder/userfiles/files/zimelador.pdf
- http://maekuangudomthara.com/ckfinder/userfiles/files/rugugabipugebupebopobogu.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/16155686b2703b---57621534375.pdf
- http://china-miyaco.com/img/file/202191892849.pdf
- http://ingpiazza.eu/userfiles/files/77592601827.pdf
- https://parvazyab.com/basefile/api203/files/24608380186.pdf
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/93babc33159e4281e109965398f1250f/36291032175.pdf
- http://nissanotogovap.net/uploads/images/files/wajesazo.pdf
- http://saxonrt.hu/img/userfiles/files/63754984923.pdf
- http://nfc-lampang.com/user_img/files/ziziwum.pdf
- http://koryosushi.com/uploads/files/tekesi.pdf
- http://www.catedralirodahaz.hu/data/editorfile/tavarujawuvogigovezudu.pdf
- http://erisalaw-chicago.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vovovuwefasejuxojo.pdf
- https://iphonerepairservice.nl/app/webroot/files/userfiles/files/1603113418.pdf
- https://giaphutelecom.com/tctt/sites/aaa/file/vomujosaner.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=under+root+x
- 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_off0000b1fe.bin087c0afee36b6b49a288581210b288bc685d93b9215765140a4f5b7b73a2b2fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1FE | 16412 bytes |
font_01_sfnt_off0000db73.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB73 | 16792 bytes |
font_02_sfnt_off0000f389.binf3fb248b37b71fe084e095de6129097dc9e0fa7de32e0682518d21ea5f96d3e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF389 | 9884 bytes |
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