Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ffe32aefdf720c…

MALICIOUS

PDF

79.5 KB Created: 2021-08-27 11:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 29cfec50f204356579d47bbfd1480420 SHA-1: 3807cb9d25f1b0ebc70163a252dc583cae70600a SHA-256: f2ffe32aefdf720c0561cbd81704f17b11b6b549d318080a5cc01f2c756b4927
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://studiogiamberardino.it/userfiles/files/merisapobanakofawe.pdf In PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/s89cong7ebeuiq94ol4f9eh25k/ralefefijatoxukug.pdfIn PDF document text
    • https://sicurezzaips.it/uploads/file/viluvopu.pdfIn PDF document text
    • https://afayl.com/userfiles/file/kuvuwawejekitivireluvo.pdfIn PDF document text
    • https://vresponse.net/userfiles/file/40975494527.pdfIn PDF document text
    • https://pecsikult.hu/files/file/5881346177.pdfIn PDF document text
    • https://2acontractor.it/images/file/rixajesisimizomekaka.pdfIn PDF document text
    • https://o-dance.com/upload/files/nugekoju.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16074cbc4dfc61---pigigebubiwazunobomom.pdfIn PDF document text
    • http://booklandbooks.com/userfiles/file/finumixunalebobideki.pdfIn PDF document text
    • http://ansatrans.ru/admin/ckfinder/userfiles/files/35865735870.pdfIn PDF document text
    • http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/31311195943.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e8c66da1a---23630272048.pdfIn PDF document text
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/160706c6f1f2d6---41517069511.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833dc0231fb---12317922607.pdfIn PDF document text
    • https://artasedanasingaraja.com/uploadfck/file/61248091073.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c851bc8c025---fafeberapezigotevekidu.pdfIn PDF document text
    • https://thuanxuongmonmb.com/admin/webroot/upload/image/files/39445299341.pdfIn PDF document text
    • http://dientrotiendathc.com/media/ftp/file/sosizevilujoraxavisojadir.pdfIn PDF document text
    • http://dieterheich.de/images/uploads/file/logojuvarezokabaruvub.pdfIn PDF document text
    • http://rasciindia.com/firetech/ckupload/files/57576913225.pdfIn PDF document text
    • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/50603879768.pdfIn PDF document text
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/ded97f13081c7eb37af896801235c1d1/20204334741.pdfIn PDF document text
    • http://alacarte-design.de/userfiles/file/64671379623.pdfIn PDF document text
    • http://dfanchem.com/upload/files/kosedusazanuba.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=physical+to+vhdPDF 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_off0000d44d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD44D 10312 bytes
SHA-256: da358d16e0191fa3def76d310f8495b94c3753cf6d1aeb07854f740b1459eaac
font_01_sfnt_off0000ebb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB4 16932 bytes
SHA-256: 6cef097f0be3259b42de3f2dc81208802656c840cb17eb7f85630c43977a5e92
font_02_sfnt_off000117fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117FC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1