MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of links, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 https://doellefjelde-mussemarked.dk/images/newsmail/file/rapubas.pdf In PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c17516105de---12461368708.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/95181073724.pdfIn PDF document text
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/16082604f82fbd---69486910769.pdfIn PDF document text
- https://onecre.com/images/content/files/soturifoxafojunut.pdfIn PDF document text
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/6a2e715220e955d2339c806439721107/mejixazateza.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086fa2f16896---lapat.pdfIn PDF document text
- http://cadeco.com/testingsites/advantage_aviation/assets/media/file/13170153322.pdfIn PDF document text
- http://solar-makernavi.com/ckfinder/userfiles/files/65677577986.pdfIn PDF document text
- http://churchontherockuk.org/home/churchontherock1/public_html/userfiles/files/medabegixibo.pdfIn PDF document text
- http://grawerlik.pl/userfiles/file/99245922873.pdfIn PDF document text
- https://www.koreayokogawa.com/ckfinder/userfiles/files/18075232389.pdfIn PDF document text
- http://ohmytour.kr/FileData/ckfinder/files/20210820_1980B5AA9937F76E.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/c41a014e7fcd93a72cfa1a484b63eb23/lorimibopuz.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7dd80a617---27956470677.pdfIn PDF document text
- http://astmasme.com/userData/board/file/46990876280.pdfIn PDF document text
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/7njpasnf81q9dk6nmok4gqrmu6/94145194751.pdfIn PDF document text
- https://inks.bg/userfiles/file/50804112933.pdfIn PDF document text
- http://lesmashclub.com/imgUpload/files/655939703.pdfIn PDF document text
- http://ersatzmonitor.de/userfiles/file/wujalafamowedutirabu.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/638f9d2cc8820365c0a37ac20d074fa7/44720652395.pdfIn PDF document text
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160abdc40863d6---54502028577.pdfIn PDF document text
- http://theofficefurniturestore.com/ckfinder/userfiles/files/17231888365.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+compress+a+pdf+file+using+adobe+reader+xiPDF 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_off0000c0b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0B4 | 16848 bytes |
SHA-256: 6fe81a91642ffd7a6a764426641bc1307e98f1dfde076c519dc54758015336ec |
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font_01_sfnt_off0000ebfa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBFA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010411.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10411 | 11384 bytes |
SHA-256: db98bb06738da414f083e9d4c2a59e6339d64d97d4aef2ea9cfcba57e979f71a |
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