PDF malware analysis — malicious · 4e3e7bf11530d7c7

MALICIOUS

PDF

68.6 KB Created: 2021-09-12 07:43:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: 44597b9196434753e675d6445336ebe0 SHA-1: f817e8beba267c61af370f9127691696f537a37c SHA-256: 4e3e7bf11530d7c7d74f1f2feca2ac1fbcf75ca4cbc2b8aa435ad23e06132345

174 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9982

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK

PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfc9ea5e76---23509476152.pdf In PDF document text
- https://childprotectionindia.com/lexcyberia/userfiles/files/99800376870.pdfIn PDF document text
- http://songhakbbq.com/uploads/files/patolirafivegebenajipaza.pdfIn PDF document text
- http://turskazka.ru/ckfinder/userfiles/files/92761026122.pdfIn PDF document text
- https://windscrm.net/files/file/42637612817.pdfIn PDF document text
- http://ls12368.com/userfiles/file/poxodelovopefomose.pdfIn PDF document text
- http://jl-vacuum.com/upload/files/9590024252.pdfIn PDF document text
- https://alaqart.atelierleuthold.ch/userfiles/files/xeniwojisazede.pdfIn PDF document text
- http://pinzimoniofiumicino.eu/userfiles/files/winex.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/kumuzat.pdfIn PDF document text
- https://ans5680.preneed91.com/upload/files/gesiwidovuvovusi.pdfIn PDF document text
- http://evolution-dev.com/file_media/file_image/file/wufusu.pdfIn PDF document text
- https://beyondpins.com/calisma2/files/uploads/sugixusoxekanibozowizew.pdfIn PDF document text
- https://cribpointonline.org/cribpointonline/userimages/file/zisadoma.pdfIn PDF document text
- https://www.renfrewareahealthvillage.ca/ckfinder/userfiles/files/jugasusip.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b750826880---kulujerekopavazoxazi.pdfIn PDF document text
- http://thegioimercedes.com/upload/files/78199341785.pdfIn PDF document text
- http://chinhlytailieuluutru.com/media/ftp/file/bemevinebusorazege.pdfIn PDF document text
- http://sasmedm.com/www/js/ckfinder/userfiles/files/boxifasukebuwasupugadobi.pdfIn PDF document text
- http://chinazzjx.com/d/files/56114280919.pdfIn PDF document text
- https://ibericadearmerias.com/file/48262037340.pdfIn PDF document text
- https://clubesolbra.com/uploads/files/71616416134.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=jarvis+ai+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_off0000b034.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB034	9896 bytes
SHA-256: `d15f0ac62dcc3eef3595fd7c9e85a9e8c91cf1b516a619c3caf3514077f5801e`
`font_01_sfnt_off0000c618.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC618	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000de2a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDE2A	15404 bytes
SHA-256: `702dbe7b80c021d67ab591eecb62245abf8e3dcb2d99f9ce760d95dcdc985feb`

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