MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to compromised CMS upload directories, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with techniques used to distribute malware or conduct phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9962
Heuristics 6
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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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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://birons.net/wp-content/plugins/super-forms/uploads/php/files/4b426fe264032a83a33571dba3787ab2/42291005783.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b7807c472---98398497608.pdf
- http://prunay-en-yvelines.fr/ckfinder/userfiles/files/23438123328.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606fbfc70cfbf---49355134882.pdf
- http://sattamatkapatti.com/userfiles/file/46021656442.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/sjt7obojpkc9l25uv5j3nfgb9p/fupujuru.pdf
- http://gaongonmaiphuong.vn/webroot/img/files/subugi.pdf
- https://marljivo.hr/userfiles/file/89564782245.pdf
- https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160975bd0878f4---40813843960.pdf
- https://kovtec.pl/eurostyl/photos/file/vubalawejamerunewagumom.pdf
- http://dlzj.net/upload/files/20210618195951586563.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3b4f7db24---koxigivikat.pdf
- https://micro-churches.net/uploads/file/jusegadofap.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160882e50b9dee---32946429265.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fecae08305---43673087235.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078ec494f04e---69266303756.pdf
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/f0dc3c3f17ad6dc00d7ab5c04bd5ed59/37490088389.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097c1dad491b---jakuvi.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073a1801e019---57589909016.pdf
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/viwupikuwaxogimum.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16079ba5a5cb01---27374901026.pdf
- http://daiichilogistics.com/uploads/news_file/55617868645.pdf
- http://aihyang.com/userfiles/file/5524705846.pdf
- https://liniagdanskzydowo.pl/files/tidilanepegokujoketuxota.pdf
- https://aftaplan.com/works/peepsparty/html/upload_files/file/43592046341.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=introductory+econometrics+a+modern+approach+7th+edition+solutions+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_off00026b1a.binaba4c59c9143dc61a0d989ff24f4084b125d841338d31a13038b7655ef2c2f97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x26B1A | 18776 bytes |
font_01_sfnt_off00029bf3.bin567f7de6550c4fb7f9dcafc14f1ccaa48493002df692b7c5490274670fb4879f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x29BF3 | 11100 bytes |
font_02_sfnt_off0002b5b8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2B5B8 | 16792 bytes |
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