MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and link farm heuristics strongly indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://inwebjor.ru/uplcv?utm_term=the+cave+apk
- http://nanouklid.cz/upload/file/vawaluvar.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132d63192af7---62184082860.pdf
- http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/wawidivuresedixatafagumuf.pdf
- http://designerhouse.ru/upload/files/86749805705.pdf
- http://asustainable.com/global/file/wukiz.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161318d34e2937---24008826001.pdf
- http://mh-gartengestaltung.de/userfiles/file/103249794.pdf
- http://www.startbatteries.gr/ckeditor/ckfinder/userfiles/files/tarojajenivuxoluwapiz.pdf
- https://vntdc.com/upload/fck/file/pozexulenalore.pdf
- http://rassadaspb.com/new/files/file/naruwomululusawanevisukuv.pdf
- http://hyunsin.net/userfiles/file/14806366654.pdf
- http://24cvety.ru/upload/files/mogefezopomolarevojirugeb.pdf
- http://colokit.thienlonggroup.com/Images_upload/files/11965234095.pdf
- http://dlabiura.kbo.pl/ckfinder/userfiles/files/bakoxadefatifumuzavirepil.pdf
- https://arbormaster.net/uploads/files/wefawezetezuwekope.pdf
- https://www.ojchamber.com/ckfinder/userfiles/files/90939344115.pdf
- http://omonetach.pl/foto/ilustracje/file/xewarejolanu.pdf
- http://indexone.ru/upload/file/83649596110.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f938e37050---jajewurik.pdf
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16139d5cd28820---pejuduma.pdf
- http://xecuoihuyhoang.com/uploads/userfiles/file/xusajibejotigel.pdf
- https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/kajorexemagejaj.pdf
- http://studiotecnicolari.it/userfiles/files/vugudotikivekewevawib.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_off0000d4c6.bin666cc8f51ac7e154a74f78beaf2c2f426f2838d6f025d411ed9e08c3a0b7f48b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4C6 | 17320 bytes |
font_01_sfnt_off0001019c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1019C | 16792 bytes |
font_02_sfnt_off000119b2.bin70103dc76ce32f7df9dd6aa8fa2f1bb819b3945cfe9b2589cc10fe1d69a2a8bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119B2 | 9864 bytes |
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