PDF malware analysis — malicious · cd7df30462d12927

MALICIOUS

PDF

89.9 KB Created: 2021-07-17 08:21:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: e5183446bf0696a2e256963971d872d2 SHA-1: e097a2f9e3f2c57564bc988191a7e57eb6b66d30 SHA-256: cd7df30462d129272b03364e5fbc5f724586fc00b6820b49606fabe9a49e9234

172 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9942

Heuristics 8

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/rmv6dbe5i6n3oe4ev6d0hlfs53/23769800607.pdf In PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/eea4c1baaf23086b9c9b7d19f5dc5c0b/tavaxumobopokuje.pdfIn PDF document text
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160c88d47a3032---vopavajukaf.pdfIn PDF document text
- https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5c8931ac8---24284051645.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b0a7c361ec6---nuzewivokotobetazizom.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/6db2e4477238753c5a7671c128b558ff/13123686962.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/t502cd1ne5q5g6rp2j254kspb5/44842322089.pdfIn PDF document text
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098b3d33c153---moxesiseg.pdfIn PDF document text
- http://xpressup.com/userfiles/file/90423405511.pdfIn PDF document text
- http://due.pt/js/ckfinder/userfiles/files/dutubifamopiperebefudulo.pdfIn PDF document text
- http://3qbuy.com/CKEdit/upload/files/zomatigamusomasipav.pdfIn PDF document text
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/b348952921045c100289390351422b98/dexopexuf.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160893eb46824b---kavazapexapu.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083d7cb8f7be---geposozisudumenitizokakus.pdfIn PDF document text
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a1f4959eb03---kubexudamowamefugod.pdfIn PDF document text
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/umprsrp3rurghc2b6d62tolat2/kibitubonenebir.pdfIn PDF document text
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/57s5c8blji8l9fn94d2lafiuol/43557040698.pdfIn PDF document text
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b1afae48223---mikunati.pdfIn PDF document text
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6a6894df0b---99951987366.pdfIn PDF document text
- http://rmgoals.com/userfiles/files/peperom.pdfIn PDF document text
- http://ceresasrl.it/userfiles/files/66177675531.pdfIn PDF document text
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/bd5269ed4f4f1ee05206463065fc4e14/vivefefeku.pdfIn PDF document text
- https://easypayindia.in/userfiles/file/86051554986.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160ccdc33a94ee---wavazaguruv.pdfIn PDF document text
- https://propiedades.net/ckfinder/userfiles/files/51662601729.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=growing+jade+plant+from+cuttingPDF 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_off0000fb06.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB06	11152 bytes
SHA-256: `9eea5cf31fb5f2e0dc89dbf55bacbc989c46c44d12117c8e18c1799e9f64e75f`
`font_01_sfnt_off000114df.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x114DF	16884 bytes
SHA-256: `795e0a156e3c794663f81f6d8c8b34b9b483a64fab63159c265d2c117a9d03bd`
`font_02_sfnt_off00014068.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14068	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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