MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and disposable domains, indicating a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://infrive.ru/uplcv?utm_term=notas+musicales+de+piano+cancion+titanic
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/jixoxemorosoxekobemi.pdf
- http://ohdiabo.net/images/ckeditor/files/sedete.pdf
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160947b9959c47---jakiporotitap.pdf
- https://schmitz.cz/res/file/25154591758.pdf
- http://malagi.pl/user-files/fck/file/xukasorubo.pdf
- http://wang023spa.com/userfiles/202107file/2021071810231570554.pdf
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc91febdd0---16180731424.pdf
- https://toppelletmachine.com/d/files/bapuzavufutojo.pdf
- http://kozelskadm.ru/files/uploads/files/68847292447.pdf
- http://myappartement.de/web/editor/files/radot.pdf
- http://fsoa.cn/userfiles/file/20717470580.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/o3n67v0hedvngov897jcsjtvhe/47213246224.pdf
- https://vantainoidia.vn/ci/userfiles/files/27225100968.pdf
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1608487c330ed7---domow.pdf
- https://sce.tw/uploads/files/60e8486f48c99.pdf
- https://kcharp.com/ckfinder/userfiles/files/bebar.pdf
- http://mudrkanuch.sk/editor_uploads/system/files/padivuso.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c0c0d56bc5---vobawaxupolenutosexo.pdf
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/t2ql8mtq2jl167fbe8ov59si1i/55117381634.pdf
- https://mudraconsultancy.com/uploads/files/91243751484.pdf
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160fef244345f3---kezirezewowivubutasefudo.pdf
- http://xn--vb0b83rba554gca.kr/page_data/file/20210527184109.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d999.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD999 | 16792 bytes |
font_01_sfnt_off0000f1ab.binb58dde6d35eadd718f8603cb1eeb7321c005d5d61b72e2fe2a37374647365710 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1AB | 18668 bytes |
font_02_sfnt_off00012159.bin64d22e3cedb3991d310452c42605c0079964cf71a7848476a1eaff1cc1963d2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12159 | 10652 bytes |
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