MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://www.annaleehuber.com/content_files/file/84486606575.pdf In PDF document text
- https://chaplains-camps.org/upload_picture/file/41709531839.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab9074d8de---majesobijep.pdfIn PDF document text
- http://krossinkeuka.org/clients/c/c6/c64aa726effa6776341672ea469011e7/File/jerixigurixewavira.pdfIn PDF document text
- http://whkmradio.com/userfiles/file/nazur.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///6694950407.pdfIn PDF document text
- https://bonacorsi.it/file/95468903056.pdfIn PDF document text
- http://infinity-pro.ru/userfiles/file/88823867136.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/554e689f76599de6c527209f7f3b272d/25647661036.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16095ffcddc7c0---jasez.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/6gja0kg6fi9fll2sp8gejda6k7/foloxadegitulapum.pdfIn PDF document text
- http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b92993062---wologirifopusu.pdfIn PDF document text
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c5b56c88be0---7178829378.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/a1fcaqse2jd5g8j5lrbjt61fp5/5338365071.pdfIn PDF document text
- http://attlas.center/userfiles/file/84149257691.pdfIn PDF document text
- http://toastwarenhuis.nl/app/webroot/files/userfiles/files/losomujalir.pdfIn PDF document text
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/nrlnjaas8c8h5uc68dq6p52efu/ketimexiratavetal.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4362d32dce---55508220501.pdfIn PDF document text
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff41f5771a---2913969822.pdfIn PDF document text
- https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/ck9kr5vdbpakl0jdlup6fdmgc2/tofuxegajonobexux.pdfIn PDF document text
- https://surupaceanu.ro/ckfinder/userfiles/files/pabijavefuwesoziwamu.pdfIn PDF document text
- http://chinhsuasolieu.com/media/files/60876714170.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/30902642557.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=qu%C3%A9+es+la+gota+en+el+cuerpo+humanoPDF link annotation
- 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_off0000e10e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE10E | 17484 bytes |
SHA-256: 492fc4a80731f3505a12308e81f7dba167088a073a5e20c7bd4d14ac1db12afe |
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font_01_sfnt_off00010d8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D8B | 11044 bytes |
SHA-256: 89af65dcb398d3f0be7767a80bb06453872162654c4388c5ac600c1ed6173036 |
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font_02_sfnt_off000126ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126EA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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