MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_URI' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this. Although no scripts were explicitly extracted, the PDF format itself can embed JavaScript, which is often used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://inwebjor.ru/uplcv?utm_term=the+meaning+of+marriage+pdf+free PDF link annotation
- http://alrabbancapital.com/file/files/tagogofugugasewopinexo.pdfIn PDF document text
- http://bbdecontra.com/userfiles/files/todepazone.pdfIn PDF document text
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/5243abc911f989a708323db60d137f33/50125617992.pdfIn PDF document text
- https://mobspace.xyz/web/img/podborky/files/33648245356.pdfIn PDF document text
- https://anukulagrotech.com/userfiles/file/27242461659.pdfIn PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/16135c1f26a7e9---73933333490.pdfIn PDF document text
- http://eperon-kochersberg.com/img_db/soborakaf.pdfIn PDF document text
- https://tidaksusah.com/contents/files/39519721517.pdfIn PDF document text
- https://phu-komplex.pl/pliki/file/bemudufeputotufixinojedir.pdfIn PDF document text
- http://laros.cz/UserFiles/file/39681916390.pdfIn PDF document text
- http://brezov-gaj.si/uporabnik/file/bedupilukiwonu.pdfIn PDF document text
- http://vandervalk.reviews/app/webroot/files/userfiles/files/lemawaniwitijiguwubakogo.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613c820ec5c0d---mazotetugozivof.pdfIn PDF document text
- https://purefeeling8.com/data/file/gidubekuki.pdfIn PDF document text
- http://rem-proekt.com/f/file/97257854820.pdfIn PDF document text
- https://ismart99.net/upload/files/tarorudolon.pdfIn PDF document text
- https://accu-split.com/userfiles/files/95745164304.pdfIn PDF document text
- http://cartopack.be/Images/file/ragurilejelabulu.pdfIn PDF document text
- https://takitech.hu/userfiles/file/bulaxiwozapova.pdfIn PDF document text
- http://audidalys.lt/ckfinder/userfiles/files/99144554607.pdfIn PDF document text
- http://studiotecnicolari.it/userfiles/files/nadonajemulakuvojo.pdfIn PDF document text
- https://dm288.rs/slicice/file/xonirevex.pdfIn PDF document text
- http://m2m2design.com/userfiles/27411826143.pdfIn PDF document text
- https://osakaav.com/userfiles/files/36189992568.pdfIn PDF document text
- 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_off0000ed9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED9E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000105b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B5 | 10596 bytes |
SHA-256: a11ca2c3cd89fc9c860797f6c1306bd7abadf5fb47d79e7744d1f608a0fb50f7 |
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font_02_sfnt_off00011d67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D67 | 17652 bytes |
SHA-256: 94735b07e68a42270ec48af471ce813bf2af1b26f20330cc3998de84a8a239bf |
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