MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to external websites, many of which are hosted on compromised or disposable domains, indicating a link farm designed to lure users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://medvor.ru/uplcv?utm_term=recorder+flute+chords+chart PDF link annotation
- http://hanifeugur.com/image/files/84490676892.pdfIn PDF document text
- http://lerucherdesanges.fr/userfiles/file/kewawakojedixaxijixasoval.pdfIn PDF document text
- http://praguynakorn.com/praguynakorn/picture/datapro/files/joposanutit.pdfIn PDF document text
- https://tecnicadovolante.com/images/file/76340003416.pdfIn PDF document text
- http://origo.ws/userfiles/file/24399907157.pdfIn PDF document text
- https://dveropolis.ru/upload_picture/12400730837.pdfIn PDF document text
- https://giritrademark.com/content_files/files/tixiwar.pdfIn PDF document text
- http://dcbestwings.com/uploads/files/92099222175.pdfIn PDF document text
- http://zulassungsdienst4you.de/bilder/file/49861036789.pdfIn PDF document text
- http://wolfroccatiassociati.it/userfiles/files/pepez.pdfIn PDF document text
- http://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/16735939903.pdfIn PDF document text
- https://santaclara.com/wysiwygfiles/file/joburimokujodudurozo.pdfIn PDF document text
- http://chemtron-vostok.ru/media/file/49973990627.pdfIn PDF document text
- https://bostoncake888.com/UserFiles/files/legeke.pdfIn PDF document text
- https://rajaketiga.com/contents/files/jadixuj.pdfIn PDF document text
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/tqfm9bqgoqem55grk4darhp3n5/67615265564.pdfIn PDF document text
- http://thuocnam.xyz/images/files/koketolajudunividetileb.pdfIn PDF document text
- http://sushiyaslo.com/uploads/files/39226379784.pdfIn PDF document text
- http://zelene-centrum.cz/webpagebuilder/ckfinder/userfiles/files/97407321800.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/clvkrrltu1hfpuh6rqtbd11sqf/pozixukuwedokebaxovu.pdfIn PDF document text
- http://holidayinntorino.com/userfiles/files/bidepum.pdfIn PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b469749b4c---1396629827.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_off0000b9a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9A7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d1b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1B9 | 16612 bytes |
SHA-256: 407d3b6bcf4bb779d7cc4f0d5d8b827d7f7840ad8b8505f4d1dc8819df047ad6 |
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font_02_sfnt_off0000fc6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC6F | 10520 bytes |
SHA-256: 7360134e8e231d29a0158300d77e836f8eacf6fac7fc9c1b49865ac4c9384d0e |
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