Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8745dac932a5a97…

MALICIOUS

PDF

78.7 KB Created: 2021-09-02 00:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: b2740d6f10b8d47a48bf3376fdbb50d5 SHA-1: 3a2b995cf3b4f2d317e5966fada1cac57882a065 SHA-256: f8745dac932a5a97e03a212a4d44f949fecb0ece28f7fb3dd0455e5c64a86eb2
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://oniceh.ru/uplcv?utm_term=how+to+read+a+speed+time+graph PDF link annotation
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/43edd932660895490477b4726c6ce4f6/gamamiwuza.pdfIn PDF document text
    • http://langeline.com/ckeditor/upload/files/leworititezaso.pdfIn PDF document text
    • http://murito.fr/ckfinder/userfiles/files/12711184827.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac26050a3b---xaweso.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a9aba1231fc---famavijobegev.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/34159084660.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160ba042422ba9---17631174621.pdfIn PDF document text
    • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/ojicjk6qmdv3ulqphefu4otvfo/30987457131.pdfIn PDF document text
    • https://a2designbg.com/userfiles/file/wuvebe.pdfIn PDF document text
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082af77e137a---mebigoxijeges.pdfIn PDF document text
    • http://nofatrans-int.com/userfiles/file/divivimopejuwovujofone.pdfIn PDF document text
    • http://studiolegalebisantis.it/userfiles/files/72007013737.pdfIn PDF document text
    • http://polkovnik.su/upload/file/vojisovibuxoma.pdfIn PDF document text
    • https://norservis.cz/files/files/mafawixazerimakelaxajon.pdfIn PDF document text
    • https://tonwen.org/userfiles/file/17422561744.pdfIn PDF document text
    • http://aotwresort.net/ckfinder/userfiles/files/87960843211.pdfIn PDF document text
    • https://alnahamgroup.com/userfiles/file/31980857428.pdfIn PDF document text
    • http://meuble-tunisie.com/userfiles/file/21008504339.pdfIn PDF document text
    • https://franchisebusinessadvisors.franchisebrokerwebsites.com/broker-site/files/files/95248996752.pdfIn PDF document text
    • http://m-s-g.ru/userfiles/files/wibovorejewafaf.pdfIn PDF document text
    • http://weberstellen.ch/userfiles/file/javosup.pdfIn PDF document text
    • http://needychild.org/ckfinder/userfiles/files/1945782666.pdfIn PDF document text
    • https://aynispirit.nl/userfiles/file/56235099481.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.

FilenameKindSourceSize
font_00_sfnt_off0000d087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD087 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE899 16716 bytes
SHA-256: 0c900fd2641e97f5b032ed7fc6ca92be1183b57768e73666620e25a05e030947
font_02_sfnt_off00011341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11341 10768 bytes
SHA-256: bc55071c915acf923e40881132632011938d52f413c4cadf14440c51f9b46e09