PDF malware analysis — malicious · 2b614766d94135f9

MALICIOUS

PDF

80.8 KB Created: 2021-08-27 18:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17

MD5: c241b28ec3ca9a69a734260496eace67 SHA-1: 429649af3908e98ae4c02906f2ee99b7ac826433 SHA-256: 2b614766d94135f9d085a5f12f61407f9d4aad66df10869337ece1df0cacd9b7

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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
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 https://catamma.ru/uplcv?utm_term=vans+with+captain+chairs PDF link annotation
- http://fitnessklub-impuls.pl/uploads/assets/file/94613133788.pdfIn PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/3fkvk8tlbf43v6j7n0n1rbb3a2/53862881404.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a6030556517---9049059469.pdfIn PDF document text
- http://redactron.com/userfiles/file/54909953385.pdfIn PDF document text
- https://charterboatdeliverance.com/uploads/files/58580834794.pdfIn PDF document text
- http://dancedynamicsla.com/clients/38740/File/80629887578.pdfIn PDF document text
- http://lorofilmes.com/Uploads/ckfinder/userfiles/files/82270692395.pdfIn PDF document text
- http://katyababash.com/images/uploads/file/jerewopatezanakumes.pdfIn PDF document text
- http://bratislava.topenglish.sk/app/webroot/gallery/files/favumirutarameguxanisumor.pdfIn PDF document text
- https://gregor-biffiger.ch/userfiles/file/89851257302.pdfIn PDF document text
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/ce7f46496fc8b51e614d987c66ac66fb/71888947273.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/40245495932.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c12f482b3ad---laroxogiburejoxositimade.pdfIn PDF document text
- http://k2plusinterior.com/userfiles/xoponupidisejegu.pdfIn PDF document text
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607abef9a5345---46056261704.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/6ee4b3d1805daf645fad8038b8e757fd/riwuwalopupo.pdfIn PDF document text
- http://www.sintsprev-ms.org.br/ckfinder/userfiles/files/fasor.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/46352870184.pdfIn PDF document text
- http://ilturismoinitalia.it/userfiles/files/fitorukakenafed.pdfIn PDF document text
- https://led7.ru/file/duvaduredatasabezonujuten.pdfIn PDF document text
- https://nucamsa.es/userfiles/files/josejadapopuxolo.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_off0000d6f2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD6F2	18364 bytes
SHA-256: `67ab27d2185937564aa11c790e3b277d370c7a90501833321817ff377c06f944`
`font_01_sfnt_off000106ad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x106AD	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00011ec4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11EC4	10228 bytes
SHA-256: `0b1b89e9045832bcb9f26968b3c5c8fa49a8ec92e538702fd055e0d5b9cb336c`

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