MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution scheme. The embedded JavaScript likely facilitates the redirection or download of further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.7099
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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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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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://chcial.ru/uplcv?utm_term=the+incompatibility+of+free+will+and+determinism+pdf PDF link annotation
- http://juentai.com/userfiles/files/xuzexelisomepoxulevusobaz.pdfIn PDF document text
- http://metalltechnik-kutschi.at/81661671684.pdfIn PDF document text
- http://www.annaleehuber.com/content_files/file/momadufuxexowitare.pdfIn PDF document text
- http://tillmanfamilyreunion.com/clients/b/b7/b7385abc5988d1ee605fea7695e3d00e/File/suvofukaf.pdfIn PDF document text
- http://taketty.xyz/js/ckfinder/userfiles/files/laxevowixiwumamarimorenoj.pdfIn PDF document text
- http://liga-stf.ru/i/upload/files/pusaxeroxanifaludebevap.pdfIn PDF document text
- http://musicpark-live.de/userfiles/file/44041061174.pdfIn PDF document text
- http://cloverpark1961.com/clients/6/6a/6a73a08bb68f643008adb5efbbb44e43/File/rudelegusadadi.pdfIn PDF document text
- http://elhammagazine.com/ckfinder/userfiles/files/33997556796.pdfIn PDF document text
- https://alusol-kw.com/ckfinder/userfiles/files/punonabovemagupetirim.pdfIn PDF document text
- https://fedico.ca/upload/editor/file/vatukib.pdfIn PDF document text
- http://hoanhaochemical.com/uploads/files/vagutu.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b18fc8339b7---fapamotiwatowisajijov.pdfIn PDF document text
- http://veszpremlizards.hu/_user/file/mowijupuwogogoraw.pdfIn PDF document text
- https://energooptima.hu/upload/File/lijonuzixu.pdfIn PDF document text
- http://ferrocom-spb.ru/userfiles/files/79787391456.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f534ba8c50---57068478754.pdfIn PDF document text
- http://buddhavehicle.com/userfiles/file/58585415449.pdfIn PDF document text
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/c4a18c9890c74154624f146dc2bc79f0/wizuzud.pdfIn PDF document text
- https://gyn-koe70.de/obrazky/file/selekunovovivemumu.pdfIn PDF document text
- http://monticellotownship.org/userfiles/file/60886761360.pdfIn PDF document text
- http://taeguektour.com/FileData/ckfinder/files/20210528_0C3159A0147F8C9D.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/b42295q648o39fnb4p0o13ulh6/bedupipipukojepajodininuf.pdfIn PDF document text
- http://buydecor.ru/uploads/files/ralibel.pdfIn PDF document text
- http://narnivet.com/userfiles/files/vodozewobititatolekewep.pdfIn PDF document text
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160802c8aeb796---31848489885.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dd9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD9E | 11188 bytes |
SHA-256: d66dabd99f641794bbe275e6a842915aca7138b967cadae2fdfce038af631305 |
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font_01_sfnt_off0000f774.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF774 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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