MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://chcial.ru/uplcv?utm_term=android+facebook+hacker PDF link annotation
- http://angarakshaksecurity.com/userfiles/file/xedoxagifidaxosuvoruke.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/d7a45d19148dc87b452795d3f7ff8f10/26551218877.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144576c32e5d---92644635611.pdfIn PDF document text
- http://testsitehq.com/ckeditor-ckfinder-integration/uploads/files/fawafiwusixofuxuzotu.pdfIn PDF document text
- https://keyseries.us/userfiles/file/94947916713.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/a8793b7d516ef4129b193101ede706f4/magevulodegupotow.pdfIn PDF document text
- https://walnutcreekguide.com/wysiwygfiles/file/ronaxinigibij.pdfIn PDF document text
- http://landpas.pl/upload/file/wotafimofivibisu.pdfIn PDF document text
- https://efficientinfocomm.com/ckfinder/userfiles/files/penataxupopoxibujelebuk.pdfIn PDF document text
- https://www.tvmreza.tv/ckfinder/userfiles/files/25999003642.pdfIn PDF document text
- http://kite-surf.sk/files/betazex.pdfIn PDF document text
- https://budapestpainter.hu/ckfinder/userfiles/files/resuwujeki.pdfIn PDF document text
- http://haokunchem.cn/upload/files/pinikalutix.pdfIn PDF document text
- http://tonioloclaudio.it/userfiles/files/dotesirorure.pdfIn PDF document text
- http://tieulongcopro.com/luutru/files/veligodajuligojubebazi.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613a921d3185c---rilim.pdfIn PDF document text
- https://ngoctraithaibinhduong.com/uploads/news_file/mikinibikudazozasiwowuk.pdfIn PDF document text
- https://worldmedglobal.com/userfiles/files/10830610162.pdfIn PDF document text
- https://groupekheidri.com/ckfinder/userfiles/files/30003264582.pdfIn PDF document text
- https://yk-tech.com.tw/ckfinder/uploads/ckfiles/files/pinenifefazuruzukiwe.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614216ea9e7cc---nojozane.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_off0000af7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF7B | 10472 bytes |
SHA-256: 448e4d32d2af896aa56eac9278a1135e6d9fecf017551f27d205539a60585e3e |
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font_01_sfnt_off0000c72d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC72D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000df3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF3F | 14216 bytes |
SHA-256: 83c69b7965fe83f8e1add25742a3fc3c7899bcc36d96affc499763588659a567 |
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