MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, with multiple embedded URLs pointing to various domains, including one hosted on a compromised WordPress site. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, suggesting it's not intended for direct user reading but rather as a container for malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
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://himalayanwanderer.com/himalayan/userfiles/files/gufoxakakorotibafafebiru.pdf In PDF document text
- https://www.utn.ac.cr/sites/default/files/files/modazudukapowonikop.pdfIn PDF document text
- https://ooobelkom.ru/ckfinder/userfiles/files/mewazexanavurexifo.pdfIn PDF document text
- http://gocoachfox.com/userfiles/file/jedudugeminowinax.pdfIn PDF document text
- https://goldmenu.com/userfiles/file/wavexurivewepuloze.pdfIn PDF document text
- http://vegman-kzn.com/ckfinder/userfiles/files/xivavulaposuxubodi.pdfIn PDF document text
- http://carmakers.cz/userfiles/files/titubaxejuranujov.pdfIn PDF document text
- https://pulsekb.ru/admin/ckfinder/userfiles/files/1952123522.pdfIn PDF document text
- http://ipublicity.cz/data/file/gazosobafodunemud.pdfIn PDF document text
- http://bukharasuwanee.com/sites/default/files/file/98884016235.pdfIn PDF document text
- http://moscowfashion.net/content/xuploadimages/file/pefabibivagabupo.pdfIn PDF document text
- https://betenagro.com/sites/default/files/file/71283183879.pdfIn PDF document text
- http://dolphinegypt.net/userfiles/file/dapopokib.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613dca75416e0---mumem.pdfIn PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/1ca634bb5698cc5d799097b4b8c69d01/30761829438.pdfIn PDF document text
- http://tensoinox.com/userfiles/files/debizefom.pdfIn PDF document text
- http://ahkjt.com/upfile/file/59708642755.pdfIn PDF document text
- https://leciv.fr/uploads/FCK_files/file/rimum.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151efb94c988---24232681987.pdfIn PDF document text
- https://ripedesign.com/app/webroot/files/fckeditor/file/jogefidaforeruzadu.pdfIn PDF document text
- https://gsacademy.ge/uploads/files/24936831078.pdfIn PDF document text
- http://volareinmongolfiera.it/userfiles/files/buzezejolilajefenu.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/TSvcnjQ06Jg/uplcv?utm_term=2nd+trimester+meansPDF 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_off00020249.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20249 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00021a5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x21A5B | 20312 bytes |
SHA-256: 8da656f5d21e66a2cd7925b5351c090d9f6e4b8120835804fdf5721cb4eba06e |
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font_02_sfnt_off00024f2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x24F2A | 10268 bytes |
SHA-256: 6cfd01413d44ef4da884356501283799e048aace3ceaa7239787be64680ce7d1 |
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