MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document is flagged as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing and malware distribution lure. It contains numerous links to external sites, many hosted on compromised WordPress instances, suggesting a link farm designed to redirect users to malicious content. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document likely instructs the user to install a browser extension or update, a common social-engineering technique to facilitate further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://irlanc.ru/uplcv?utm_term=screen+video+recorder+for+pc
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160864652c140d---dakefedeba.pdf
- https://eghamatyab.com/basefile/bainbookcom/files/40681361718.pdf
- https://advantagelic.com/singhania/downloads/file/zedudovapenido.pdf
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/9as6449keuaji13l6htl0prnjs/towaxuzuk.pdf
- http://vinamex.info/uploads/news_file/tarepipavifix.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096558ec27e3---10331585113.pdf
- http://www.alex-vasilkov.ru/images/wisdom/file/19039552711.pdf
- http://baybayankaauamo.com/clients/c/c9/c9e0f772d4a556598cfa564a27137582/File/kusuzikufugawotapepemene.pdf
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607110cbea0cd---vekum.pdf
- https://comobrew.com/newsite/images/user_uploads/file/gapajegagulomikutadov.pdf
- http://asiadomainstore.com/userfiles/file/84647402237.pdf
- https://petala.gr/userfiles/file/luwoz.pdf
- https://banghenails.com/upload/file/30675811683.pdf
- http://tourister.kr/userfiles/file/vikena.pdf
- http://portalpr-b2b.es/img/user///file/_0272400001624774399.pdf
- http://cmepta.com/clients/7/74/74ea2f63c40943e6497cbf70acaf7c81/File/kerabovuxosape.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c35caaafd1d---17165999426.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/eo4h6ld613esiv4ljv1tq1th4s/83321635644.pdf
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/83984c49453daa8c4a298dec5ba0d986/50983485846.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/c8f64a63fc283d71b8b4461deaecf103/kazufezikakojulolapomolo.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c38994383---figolivakukabaza.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_off0000f275.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF275 | 16792 bytes |
font_01_sfnt_off00010a8c.bind2f212cad4b0655538d2bdc2a55f41615f3fe8355d38da49661aaf07b0477c0e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A8C | 10280 bytes |
font_02_sfnt_off000121c8.bine7688cc21151c2f9e9e56b4efa15ebfbc6b48f11d8cbdbbb65aa96381cc7ccd2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121C8 | 17040 bytes |
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