PDF malware analysis — malicious · f99ad62a7fa565ad

MALICIOUS

PDF

81.2 KB Created: 2021-09-13 03:20:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13

MD5: bf0eccffbe9c6d9a0b5029f463ee3a8d SHA-1: eef529c205f0943042b97eb4d39c318da09cd071 SHA-256: f99ad62a7fa565ad2ba55d112f047aa4c5971aa8fd1e14594ed1ec6e068a5619

196 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9972

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE

Document 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
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF 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.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small 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.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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://sinosteelcode.com/filespath/files/20210912202349.pdf In PDF document text
- http://farmaciafasolis.eu/userfiles/files/46786096738.pdfIn PDF document text
- http://kingsfinancialconsulting.com/userfiles/file/64126505028.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/6h585cac6hnv39h18mnkojp8bq/3109714672.pdfIn PDF document text
- http://paulabenveniste.com/UserFiles/file/31972169724.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac8bf5dee2---93795762512.pdfIn PDF document text
- http://linkingpeople.info/userfiles/file/62819853479.pdfIn PDF document text
- https://beauti-full.ru/uploads/files/rovifelu.pdfIn PDF document text
- http://arredamentoambienti.it/img/file/35731230732.pdfIn PDF document text
- http://www.weilandensemble.nl/ckfinder/userfiles/files/5219955561.pdfIn PDF document text
- https://regiefranchet.fr/userfiles/files/dewamas.pdfIn PDF document text
- http://hangtatmj.com/userfiles/dojamelagowejoja.pdfIn PDF document text
- https://cribpointonline.org/cribpointonline/userimages/file/wigebubupivumodatukipi.pdfIn PDF document text
- https://abofahed.com/userfiles/file/zubepikediwazosufutut.pdfIn PDF document text
- http://webmba.fr/client/logo/file/kajidesaf.pdfIn PDF document text
- http://thegioioto.store/upload/files/55528329683.pdfIn PDF document text
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139eb39a158a---vumagemapemibunimokev.pdfIn PDF document text
- https://ferado.vn/userfiles/file/rarevoxodogesetowipiwaz.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136c69edff54---12052918920.pdfIn PDF document text
- http://centronegozi.com/public/ragovuzikozuve.pdfIn PDF document text
- http://watthaistuttgart.de/userfiles/file/sometafigurisatuva.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=sega+saturn+emulator+apkPDF 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_off0000d5bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD5BC	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000edd3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDD3	10772 bytes
SHA-256: `3eb378e45f14868ed1bd49379f1851f94c33562a94c10e689903e7b84d70cbd0`
`font_02_sfnt_off0001069b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1069B	18640 bytes
SHA-256: `c6c26e465979fb0109e06d6efe5af82cf0e005fa6bc39d303eb7f385a15f31c1`

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