Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bec3e20f63605c…

MALICIOUS

PDF

73.4 KB Created: 2021-09-08 19:16:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: c906941969865ebdb59feea92b239f60 SHA-1: c93ed2e82776e2289f1af55408e6aa3dd86917a4 SHA-256: 72bec3e20f63605c51fa23164dcb3e702ce60f284700375257cb0ff647bf0b2d
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613186f1dc899---safafuxe.pdf In PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0a1e9af93---2892367547.pdfIn PDF document text
    • http://mrs724.ir/basefile/drtiketcom/files/51584500472.pdfIn PDF document text
    • https://austarpharma.com/upload/files/sinipeduwuribuzip.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/lefavakobux.pdfIn PDF document text
    • http://hongdacable.com/d/files/16477696072.pdfIn PDF document text
    • http://www.iciparis.ru/ckfinder/userfiles/files/zirefupa.pdfIn PDF document text
    • http://papianiarch.it/userfiles/files/16404436096.pdfIn PDF document text
    • http://www.its-dph.cz/admin/fckeditor/editor/userfiles/file/diwoda.pdfIn PDF document text
    • http://mtegl.wsystem.sk/userfiles/files/wimaviduzogum.pdfIn PDF document text
    • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/161330565cc115---roferop.pdfIn PDF document text
    • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/tvfieemae0j9bm8oebr7da1bt1/sexamiwuvepiwumag.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e8f95cf9d---65764959683.pdfIn PDF document text
    • https://z87992961.com/upload/files/20210905021025.pdfIn PDF document text
    • https://foodsafebox.com/ckfinder/userfiles/files/bitumetarofotevepizimowov.pdfIn PDF document text
    • https://mimpishio.com/contents/files/14285529782.pdfIn PDF document text
    • http://studio5r.com/userfiles/files/limabudesegun.pdfIn PDF document text
    • https://lifecareproduct.in/ckfinder/userfiles/files/14584155430.pdfIn PDF document text
    • http://cen7dias.es/userfiles/files/kigesodutuma.pdfIn PDF document text
    • http://bhartiyambeohari.in/userfiles/file/mawopedunixonarex.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=adobe+pagemaker+convert+to+pdf+onlinePDF 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_off0000ba1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA1A 11076 bytes
SHA-256: 6f5c5331a596e34211e21fbcfbd84637e315e98b386915859b54d84c6602a458
font_01_sfnt_off0000d37d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD37D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000eb8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8F 17340 bytes
SHA-256: 2982675afe26e15d85ceb99e722e4624e947c84a39259d70e07a33cfe4225ad4

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