MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm with numerous URLs pointing to disposable hosting, a common tactic for distributing malware. ClamAV and ML classifiers flagged this file as malicious, indicating it's likely a phishing or trojan delivery mechanism. The presence of multiple external URIs and a link farm suggests an attempt to lure users to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://yyfxsw.com/upload/files/latamatukorazawo.pdf
- http://msdoubrava.cz/foto/images/file/72566371756.pdf
- http://elcivan.com/admin/UserFiles/file/84816035415.pdf
- http://fteq.ru/files/file/dimenajesitajape.pdf
- http://otohyundaidanang.com/uploads/image/files/padozo.pdf
- https://megatex.ua/images/uploads/file/93697340178.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/3edd0780fb83599d67e12d9431ed284d/rironidibukafa.pdf
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/b46dd6a7a237c2e7b9381332bb6b974c/bisosufemefun.pdf
- https://shevian.com/images/file/11410415979.pdf
- http://hamishehbaharcarpet.com/My_Project/Hamishe_bahar/ahar_img/files/kezusatel.pdf
- https://perfecthospitals.org/ckfinder/userfiles/files/93829653749.pdf
- https://guapa2.com/admin/fck/file/46825950901.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16139602f009e4---lejumutekokozitanej.pdf
- https://hgindustrial.eu/userfiles/files/lifunokuwalozugagafa.pdf
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/zenarurejanejawamofakif.pdf
- http://servmed.net/userfiles/file/50047987871.pdf
- https://maribon.net/app/webroot/files/userfiles/files/giravidigalutujefolubi.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/7c6fa1034c01cc751fe2a54eff53d899/tameraxi.pdf
- https://durimawar.com/contents/files/vadidakovudaxuroje.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613157d7a8ee7---jaxuzasijasimofomisux.pdf
- https://hanurichurch.org/ckfinder/userfiles/files/kubewudavovalibefojib.pdf
- https://foundationkuzmanov.com/files/27727100169.pdf
- https://protraderin.com/userfiles/file/62605400013.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=before+i+go+to+sleep+sj+watson+pdf+download
- 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_off00010c36.bin41ea349748c524719f2ac4ed0c638948ffafd4202f6a9103065355c601d50586 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C36 | 18764 bytes |
font_01_sfnt_off00013c8a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C8A | 16792 bytes |
font_02_sfnt_off000154a1.bin200202ccde0c41080bc8e5d8e31abad9e637bb55fbfa9b3b4aa61e37b1d45aed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x154A1 | 10944 bytes |
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