PDF malware analysis — malicious · d3ea07fc7c528385

MALICIOUS

PDF

97.0 KB Created: 2021-10-14 04:10:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20

MD5: 453657bffa57ddd00dd5a45380946320 SHA-1: 07e96978a5f5218e914e58d1b871c5cdb99d171b SHA-256: d3ea07fc7c528385cbd1556a0c809cd4d776b4e09af632d0e85d547ed9445c9d

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9977

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 http://vitanova-cattery.com/upload/file/bilimefadatub.pdf In PDF document text
- http://ilkyoukais.com/Images/Media/files/82226302297.pdfIn PDF document text
- https://matras-matrasych96.ru/admin/ckfinder/userfiles/files/7251606280.pdfIn PDF document text
- https://dom4m.com/userfiles/files/73713716543.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/d55k866v7ummqteam2k523oofc/rerenelexa.pdfIn PDF document text
- https://adepotcustom.com/UploadFiles/file/20210908072807184.pdfIn PDF document text
- https://lnpro.in/ckfinder/userfiles/files/73182417399.pdfIn PDF document text
- http://hebammenglueck.de/ckfinder/userfiles/files/samutejemisuwamijibukomam.pdfIn PDF document text
- http://artechq8.com/beta/uploads/files/50795694857.pdfIn PDF document text
- http://exms.fr/sites/default/files/file/vunegilawevokapiwamu.pdfIn PDF document text
- http://grandfiltr.com/files/file/67769084529.pdfIn PDF document text
- http://szpk.hu/_user/file/simavip.pdfIn PDF document text
- https://funbugs.ie/files/file/kawekujunirokoxularilovot.pdfIn PDF document text
- http://ipllaser.in/uploads/13983682256.pdfIn PDF document text
- http://castrolmintabolt.hu/images/upload/file/dozaxiwulawido.pdfIn PDF document text
- https://nabil-doukali.com/userfiles/file/xexujupelojivu.pdfIn PDF document text
- https://tekartltd.com/upload/files/17360538809.pdfIn PDF document text
- https://probidjp.com/ckfinder/userfiles/files/20210917_003108.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16150ab3b28df1---5612635346.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615e8edecc8d3---ravegogavavoxogavix.pdfIn PDF document text
- http://kxnjl.com/userfiles/files/42276358159.pdfIn PDF document text
- http://www.instalacionescueto.com/nueva/ckfinder/userfiles/files/togezazewej.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/Z3ufxtS7Wvw/uplcv?utm_term=word+share+pdfelementPDF 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_off00011215.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11215	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00012a27.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12A27	20344 bytes
SHA-256: `0abf9c50ef68c6a4d08c37bc54cc7d751d85eb309669f31c106f89d7d70d8f25`
`font_02_sfnt_off00015e7c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15E7C	10664 bytes
SHA-256: `996d923e4565da530a423d65e4d3c333515c092ba8f313d5e04a4ba7d5538634`

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