MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as a phishing trojan. It contains numerous links, many pointing to disposable hosting or compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious content. The presence of multiple external URIs and a link farm heuristic indicates a phishing or redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://odontotecnicacoop.it/userfiles/file/fanegevexigofulorakub.pdf In PDF document text
- http://benthanhsgfarm.net/images/uploads/files/16824464306.pdfIn PDF document text
- https://optical-axis.com/uploads/files/202109162125223602.pdfIn PDF document text
- http://odessawa.com/userfiles/file/sajidiwowo.pdfIn PDF document text
- http://an-ocn.ru/ckfinder/userfiles/files/relexuvirivetidi.pdfIn PDF document text
- http://khamtribacninh.com/images/files/33724782857.pdfIn PDF document text
- http://posuni.com/userfiles/file/migoro.pdfIn PDF document text
- http://sivam.pl/files/file/10920081275.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161391f2d5ab7e---jiderofokumabagegarev.pdfIn PDF document text
- http://boden.boj.se/uploads/userfiles/files/nigefifivazapasabidumule.pdfIn PDF document text
- https://resortweeks.pro/userfiles/file/sugadipuzulas.pdfIn PDF document text
- https://rajaunited.com/contents/files/safowufukinidexe.pdfIn PDF document text
- http://cloverdiamond.com/file/xesojebu.pdfIn PDF document text
- http://rigdrilling.org/userfiles/file/3747270483.pdfIn PDF document text
- http://xn--3bsx3iw22bmot.com/filespath/files/20210916212333.pdfIn PDF document text
- http://boldogelet.hu/media/romun.pdfIn PDF document text
- http://bxbrdh.marketsearching.com/upload/files/renijol.pdfIn PDF document text
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/09ffa2683c12a5c64f025e3faf19954b/43241918163.pdfIn PDF document text
- https://weboonline.com/ckfinder/userfiles/files/63061284574.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/5db00918bc5c69a748ecb35dfd600d36/45689700399.pdfIn PDF document text
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/lobisopefaveji.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613760bfe481c---fefijegafos.pdfIn PDF document text
- http://www.hausman.eu/images/wyswig_images/file/jonokosonufotata.pdfIn PDF document text
- http://rakkhunnursinghome.com/user_img/files/22565342115.pdfIn PDF document text
- http://fra2ange.it/userfiles/files/sapepirese.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=dp+kothari+basic+electronics+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_off0000c7bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7BB | 17148 bytes |
SHA-256: b7ab849daa1a03f09e4efbd4b22d17825db021bc943d365acf2ca137b6d28d54 |
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font_01_sfnt_off0000f441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF441 | 10948 bytes |
SHA-256: 8cdee7f1af6f663781ba8aa8216cd7f4f5c47565a6e1f043ffed07f8a1ae34ff |
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font_02_sfnt_off00010d5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D5B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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