Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2bd6f67d5fb3bf…

MALICIOUS

PDF

83.4 KB Created: 2021-09-05 10:53:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: a160dfa7e51c8d5440abf33ce5730a5b SHA-1: 545d3ef332c1200c777caf8dbd9402b156d7107a SHA-256: af2bd6f67d5fb3bfcfe79a987261e3a659a44d93558494767c7d1535f993ceb3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9860

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://myphi.biz/nbloom/fckuploads/file/xokusabotobosefix.pdf In PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e945966b611---gigibigonuzazobifop.pdfIn PDF document text
    • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c29fd0f2827---61612581324.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3d3024ed2---971525926.pdfIn PDF document text
    • http://dogalakustik.com/depo/sayfaresim/file/pazikitafafigebekimafizi.pdfIn PDF document text
    • http://donleroy.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/81209330418.pdfIn PDF document text
    • http://honyi.tw/ckfinder/userfiles/file/gozetuzoxadexokesisusevu.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609a1840c38a4---22402624632.pdfIn PDF document text
    • https://ludifrance.fr/userfiles/file/dilavi.pdfIn PDF document text
    • https://psfund.org/public/uploads/files/cms_files/zizalajigebaderufep.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071bd01ad825---vujimo.pdfIn PDF document text
    • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/a22f37324d1ef8f63677b12eb7b811f2/dudovo.pdfIn PDF document text
    • http://gaushalango.com/uploaded_files/userfiles/files/71157063085.pdfIn PDF document text
    • https://hasekei.jp/userfiles/file/selukunafoniwiwozuvazet.pdfIn PDF document text
    • http://clarasonic.com/upload/file/91523112321.pdfIn PDF document text
    • http://naturabliskociebie.pl/userfiles/file/bogowumofavinibagivem.pdfIn PDF document text
    • http://balbu.hu/uploads/news/file/didigen.pdfIn PDF document text
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f54ee77a35---vufusudalebuzo.pdfIn PDF document text
    • https://lesura.net/userfiles/file/pilanodixakudufisarikuw.pdfIn PDF document text
    • http://hongdacable.com/d/files/dusiwofoso.pdfIn PDF document text
    • http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b55f94287ec---84732356524.pdfIn PDF document text
    • http://csss77.com/clients/d/df/df7f2fdc42e243c7a03c192a8228c0be/File/94788306178.pdfIn PDF document text
    • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/900e0ee300919e5d8e0fd1abbc0130d6/sedamepasatu.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/ad6aaa126de50f906abcd0206ea2a20e/dejonalosagedumupuril.pdfIn PDF document text
    • https://kaplaitalia.it/userfiles/files/zadesufanarigunubosanolav.pdfIn PDF document text
    • https://xn--90ah6akb9e.xn--p1ai/f/file/45165957858.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=convert+pdf+to+word+online+free+no+email+requiredPDF 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_off0000e05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05F 10920 bytes
SHA-256: 181896689cb271d822813058ff291dfa6ef54d4c20205d11e37e4abbccd0c7de
font_01_sfnt_off0000f980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF980 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11192 17800 bytes
SHA-256: c9cea096014afc94fc00385a5f1b7d0fe3fc51c7b325ddc6a8c5782f2ae04c54