Malicious PDF — malware analysis report

Static analysis result for SHA-256 941b893e652ef32d…

MALICIOUS

PDF

70.6 KB Created: 2021-09-24 13:51:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: fc7bc872d5f1b295c49c68b72062ce36 SHA-1: d29b1f5e947cea4f980fc3aa2931762828a4b424 SHA-256: 941b893e652ef32d022513af6f8657af587587bbc5a239245e155e3b67f58378
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9837

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://huntic.ru/uplcv?utm_term=android+na+laptopa+download PDF link annotation
    • http://flairpens.ru/uploads/files/39773542270.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee6b2959a5---pejik.pdfIn PDF document text
    • http://stellarp.com/userfiles/files/81264216979.pdfIn PDF document text
    • http://eltprof.ru/userfiles/file/52390967002.pdfIn PDF document text
    • http://frankifoto.com/uploads/pages/files/73798441142.pdfIn PDF document text
    • http://mlsy.cz/images/file/files/mibuxodijofovazefenar.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/2d96b162bc90c54ac0418a6d6da8767f/sujowakezibujagaleb.pdfIn PDF document text
    • http://hsi-international.com/ckfinder/userfiles/files/duvosagijinikejipexibere.pdfIn PDF document text
    • http://baltyk.recykling-rejs.pl/imgturysta/files/79202683818.pdfIn PDF document text
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161432b6d1acd3---32052499514.pdfIn PDF document text
    • http://www.valathors.com/ckfinder/userfiles/files/53295481781.pdfIn PDF document text
    • https://barcelonacentromedico.es/files/galeria/files/18974986308.pdfIn PDF document text
    • https://shoppingplanet.ro/ckfinder/userfiles/files/5874129061.pdfIn PDF document text
    • http://mtjjt.com/2013/upload/article/files/210910214756438288oyy2d.pdfIn PDF document text
    • http://topup-fight.com/ckfinder/userfiles/files/jisedudexoxomuwe.pdfIn PDF document text
    • http://nordicwalkingturak.hu/_user/file/tilerufaduket.pdfIn PDF document text
    • http://tahokart.ru/userfiles/file/vokixakozax.pdfIn PDF document text
    • http://msinziniering.com/userfiles/file/sokepikexigigijukenuravo.pdfIn PDF document text
    • https://swaarm.de/app/webroot/upload/files/zomimerexetitikewe.pdfIn PDF document text
    • http://emailreceptionist.net/userfiles/file/kosesulililerurekirotu.pdfIn PDF document text
    • http://mgocsm.in/userfiles/file/tegivilavotumaridanutopo.pdfIn PDF document text
    • http://www.village-gaulois.org/gestion/ckfinder/userfiles/files/15751627818.pdfIn PDF document text
    • http://msinziniering.com/userfiles/file/53859945816.pdfIn PDF document text
    • http://crestviewshopping.abwingsmd.com/uploads/files/jisugesatobisozamit.pdfIn PDF document text
    • https://stallion-international.com/userfiles/file/tenuzibowixujivijawovaw.pdfIn PDF document text
    • http://studioaba.net/userfiles/files/45373695647.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16136955a71a04---32721037652.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_off0000b4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4C2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ccd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD9 10152 bytes
SHA-256: e582b346c824bfc2f55ae7dc792754189b19d02fccb16897d7bf087ce3c55e4c
font_02_sfnt_off0000e3a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A1 16352 bytes
SHA-256: d1dffe4893051d240aaa7de36e7ca7dbb3b3858a5c3dc840788f9ef9379df3ac