Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f8eea8b4c4ffb74…

MALICIOUS

PDF

97.4 KB Created: 2021-06-28 08:05:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 0a46167e1fcfe339efee77f697b962bc SHA-1: 1dd4b1533fed55d1d10ba1b6af68ed9f016fefa8 SHA-256: 7f8eea8b4c4ffb740c29ed19a9d04aa55da2f0126a7e3aa477083c3892706e6e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content or phishing lures. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9930

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://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5a8a9d48a---63710565674.pdf In PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/211ec31b4231a948874c750a2dee32bd/rututozifajilix.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f40a45e270---73923758166.pdfIn PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/f8b29361c438cfbfdf3162f2e2b49100/ropopino.pdfIn PDF document text
    • http://www.tramag.pl/upload/file/71152354778.pdfIn PDF document text
    • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/160bfeab2558b1---wekurudonub.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b5cbc1032---kokuvupedenupamowedog.pdfIn PDF document text
    • https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/ee97233a98fa5d41bcc17e655b959e45/gelawexumapakeparikar.pdfIn PDF document text
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609acc5bb6566---29489111211.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/5ga7sil2e178bln4tgb685e0qg/xediwolegoku.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608eaadeed034---wopazapupud.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160853debd0e6b---takukuzimigopimarebizarez.pdfIn PDF document text
    • https://paperland.bg/uploads/file/39815969628.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/99a956d6879ce5b8a1f319ec33a320c3/95130562493.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/35rg27f7kf7rlto1uscpgdv4rk/jejuvabumolevipepebalu.pdfIn PDF document text
    • http://tlproduct.com/userfiles/file/rexepex.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a38cca78b81---82575092053.pdfIn PDF document text
    • https://cr2tek.com/userfiles/Proj_Name//files/dekedaguwarikaxil.pdfIn PDF document text
    • https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/56256187fd990328c8a89b222f59dc21/vupedufonot.pdfIn PDF document text
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b91f26aa429---47050366548.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/415701e0b72b72146cd7dd944d90c3e7/fojilasuxetidumuzatex.pdfIn PDF document text
    • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/1289886244184340696b1ed3231187f1/texenenenujopefozabobo.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609071f60b0f4---jenulosimemonaguj.pdfIn PDF document text
    • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/48950fac5d236702b670e5876c36cd7f/68040557345.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1f2b6b118---75494895329.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=lucy+had+a+steamboatPDF 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.

FilenameKindSourceSize
font_00_sfnt_off00011866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11866 18224 bytes
SHA-256: 52843960abb180415df01086a3306aa2c858af95dd0423c2eb9f2032af9e1c2e
font_01_sfnt_off000147f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147F8 10604 bytes
SHA-256: aee12a9056d8d439b566f7b40558d1b0d10d7d79035b7ce365b8711d28041ccc
font_02_sfnt_off0001604d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1604D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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