PDF malware analysis — malicious · c5d2dcec3bcc55fd

MALICIOUS

PDF

85.8 KB Created: 2021-08-17 00:22:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28

MD5: b85e7700972a24cf7e86b6379cf77e64 SHA-1: cfce5b2bf355e06a7961b80d3b5660c6a3f8bee2 SHA-256: c5d2dcec3bcc55fd02783ab061a3d68bc3d0fbfe3c7f2ec0e4f6899dc8659620

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://laborke.ru/uplcv?utm_term=multiplication+des+nombres+d%C3%A9cimaux+exercices+%C3%A0+imprimer PDF link annotation
- http://tai-yang.tw/taiyang/upload/file/moxosanokabokuvovojurak.pdfIn PDF document text
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/0bf8c0be1a5301bc3a76a894536e1110/65259054179.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa8018bffa---53990219439.pdfIn PDF document text
- http://polaryachts.com/res/wysiwyg/file/11109349348.pdfIn PDF document text
- http://casier-a-bouteilles.com/file/12029945982.pdfIn PDF document text
- https://atcotourismtravel.com/userfiles/file/67015707686.pdfIn PDF document text
- http://wilkinsconnection.com/clients/9/94/94ba1e7d864c5c8af3bb481f5f9f31de/File/zatogalonedogapunipasot.pdfIn PDF document text
- http://henanshuangxin.com/d/files/19407762228.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16085ff0cc8697---fujaropesesifel.pdfIn PDF document text
- http://meta-min.com/files/59936090355.pdfIn PDF document text
- http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/c008a74f338cf55adf6cd0e16f1e5f41/xoranawozorarogulebi.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/ab2faben47ij4t2ukiat0atufj/mesowofiwugubufab.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/1a5c3a5f2f3fb80ecdef5aaa3d2cb5a5/xezarunejegupupasirin.pdfIn PDF document text
- http://devison-matras.com/upload/file/kanipipuruzob.pdfIn PDF document text
- https://bfull.ru/uploads/files/fopuladazilafodox.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/34833313418.pdfIn PDF document text
- http://nmglyxx.com/userfiles/file/mofigofo.pdfIn PDF document text
- http://alexdisinfestazioni.com/userfiles/files/63202221735.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/9fbcca903f415215e9eebe6afafde766/72358997417.pdfIn PDF document text
- http://weiken-rc.com/upload/files/9553809673.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/087c25272688b161b14e5a1014dddd65/60022455201.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_off0000e524.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE524	11348 bytes
SHA-256: `156318e1b41174ccfe02a18e7a61909c6b67f6a0c0b008d7c8fb3843c5ca2cc8`
`font_01_sfnt_off0000feef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFEEF	18652 bytes
SHA-256: `d3a84b5d03594fea496f5d90a41b3b6fdff5cf6362bc0aa8785905cb116844bc`
`font_02_sfnt_off00012dce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12DCE	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

Open this report in the interactive analyzer, or submit your own file for analysis.