MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. No scripts were extracted, but the structure and URL patterns are consistent with a malicious PDF designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9938
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://gaushalango.com/uploaded_files/userfiles/files/sotexufekigu.pdf In PDF document text
- http://www.cottagegrad.ru/files/file/50407112538.pdfIn PDF document text
- http://synhbio.com/upload/files/2993526967.pdfIn PDF document text
- https://brukspec.pl/upload/file/57179483174.pdfIn PDF document text
- https://vinasimex.com/uploads/file/97515991062.pdfIn PDF document text
- http://liebherr-tr.com/userfiles/file/76244025777.pdfIn PDF document text
- http://www.arborvitae.cz/ckfinder/userfiles/files/38810971735.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613e609c114e0---33233358890.pdfIn PDF document text
- https://gazeta-msp.pl/user_files/File/domapevebuxozunox.pdfIn PDF document text
- http://meteosputnik.ru/userfiles/file/piduweterula.pdfIn PDF document text
- http://hondatayho.vn/images/ckeditor/files/73278899234.pdfIn PDF document text
- https://www.padanguparduotuve.lt/ckfinder/userfiles/files/44878115546.pdfIn PDF document text
- https://noelex22.org/userfiles/file/rilezomimugilanapuguduzer.pdfIn PDF document text
- http://casinodanmarkjackpot.dk/userfiles/file/61757630317.pdfIn PDF document text
- https://huangs.tw/uploads/files/202109062250537556.pdfIn PDF document text
- http://hbisan.com/userfiles/file/gixalogupageruzelefag.pdfIn PDF document text
- http://ydchem.cn/filespath/files/20210907063735.pdfIn PDF document text
- http://americansemitruckparts.com/d/files/tuwunuribarowilif.pdfIn PDF document text
- http://gongin.humenia.com/upload/userfiles/2021/09/files/210907160058.pdfIn PDF document text
- https://kalendarz.probik.pl/fckeditor/userfiles/file/17043028091.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c46470a67---pakatukabagelogeme.pdfIn PDF document text
- https://defi128.phpascal.com/userfiles/files/wisud.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/19fec863e60b48a37856362a2b70aded/jusesonisusedazubenot.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=beethoven+f%C3%BCr+elise+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011a4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A4E | 10744 bytes |
SHA-256: f56fc655b4ba36c7c7a802cb3138aec6df93c4e787d5751488d8602cca4af771 |
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font_01_sfnt_off000132dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132DC | 23368 bytes |
SHA-256: e5995cc9369de7b15dd63e4668266f3348d6936d26adbadbb557bf5b82cc164f |
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font_02_sfnt_off00016dd0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16DD0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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