PDF malware analysis — malicious · 793f1fa1f81a8f0b

MALICIOUS

PDF

83.0 KB Created: 2021-10-17 14:16:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15

MD5: 3c7a972c058aeffdd57bdc36ca9c6976 SHA-1: 2d823aa6f074e0c56d2e5697fda815a3f2ae235d SHA-256: 793f1fa1f81a8f0b6b5ddfe154487252b68a8e61bc42f7b852de76b8696956f7

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9981

Heuristics 6

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://generaldistco.com/images/file/pibenofevof.pdf In PDF document text
- http://fiumaradelsossio.it/userfiles/files/xamowomumizepawunutu.pdfIn PDF document text
- http://haihengpharm.com/upload/files/koligew.pdfIn PDF document text
- http://www.motionmantra.com/userfiles/files/pizawegifebaxivofo.pdfIn PDF document text
- http://popmetre.com/news/files/65224839116.pdfIn PDF document text
- http://pawsandtiaras.com/ckfinder/userfiles/files/ruketubodifaxolovurinaze.pdfIn PDF document text
- https://hanomanberjaya.com/contents/files/jesefafozo.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/sr4q66lq69af3j43pldr6gihcv/doliganuzusuvobefafup.pdfIn PDF document text
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/55a0a443f02674eecbbfdcc1d659fa9d/20193307696.pdfIn PDF document text
- https://epagneuls-bretons.fr/caningest/images/file/xapupuzuxobepazoxowadaxi.pdfIn PDF document text
- http://marjoleintje.nl/include/userfiles/fuvilovaseso.pdfIn PDF document text
- http://vekosgroup.ru/userfiles/file/zoximekuwapide.pdfIn PDF document text
- https://ataru.site/js/ckfinder/userfiles/files/lanakanuwa.pdfIn PDF document text
- http://archiw.gbpopatowiec.pl/img/upload/files/77932909355.pdfIn PDF document text
- https://lengthening-sldf.com/userfiles/file/7807319352.pdfIn PDF document text
- http://0575zl.com/userfiles/file/32699289702.pdfIn PDF document text
- https://callmarkinvestments.fortunekenya.com/callmark/files/firekatuvikikijoride.pdfIn PDF document text
- http://a899.net/userfiles/file/parunotomutirelixujusojod.pdfIn PDF document text
- http://garageanything.com/js/upload/files/rozurer.pdfIn PDF document text
- https://digiconelectronics.com/media/90639865060.pdfIn PDF document text
- http://top-rubber.com/admin/fckeditor/editor/filemanager/connectors/upload/file/65373629391.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/HKUGBsJGI0E/uplcv?utm_term=lake+tahoe+to+squaw+valleyPDF link annotation
- https://rt9.rspo.org/ckfinder/userfiles/files/mirewadiwofonepeg.pdfIn PDF document text
- 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_off0000e0cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE0CB	17548 bytes
SHA-256: `88399fa7b92346b2979fb853e1382be197adcb5b4f5df93562895dc23efe27d1`
`font_01_sfnt_off00010e1d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10E1D	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00012634.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12634	10472 bytes
SHA-256: `d9e6bb466df64d1bb4e76cb84adc9abea261aedec6bca3fb7c83a1c027db8608`

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