Malicious PDF — malware analysis report

Static analysis result for SHA-256 941b720af69888a0…

MALICIOUS

PDF

87.0 KB Created: 2021-08-21 05:30:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 31fa91e8794ad48090f877c23f73e082 SHA-1: ad240bf23b105fd91a34c2792a087b4ddcc84dbd SHA-256: 941b720af69888a05f3dcb246b03f20a3d958e28cb9629fcb47b516f7633c0df
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://ankurgroups.com/userfiles/file/26762679655.pdf In PDF document text
    • http://petrduchek.com/files/repuvamavibitawij.pdfIn PDF document text
    • https://sindonis.com/userfiles/file/nolunopagadati.pdfIn PDF document text
    • http://medianet2000.net/amm_prod/image_news_popup/file/vibupavora.pdfIn PDF document text
    • http://designgaleria.hu/userfiles/file/zexawasugujelirepif.pdfIn PDF document text
    • http://myafmc.com/clients/a/a5/a51d49d85de18111a3d718c63a5e5081/File/7840955111.pdfIn PDF document text
    • http://africanhairbraidingsalon.com/userfiles/file/40501969244.pdfIn PDF document text
    • http://precedent.by/_newsite/images_from_html_editor/file/nomeka.pdfIn PDF document text
    • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc0a99e882---wiwowasidoxofezarux.pdfIn PDF document text
    • http://expertcomptablecourreges.fr/michel_courreges/userfiles/file/72593641066.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/78gnj9mfssr8acco2ueksj4ek4/tanapuwamonavofofi.pdfIn PDF document text
    • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/4e56g3f09r9lfbf0ek2go637pj/77577042910.pdfIn PDF document text
    • https://laughteronlineuniversity.com/images/upload/files/2130845869.pdfIn PDF document text
    • https://djennebeads.com/nbloom/fckuploads/file/64260497064.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/c68c452ca33b717b77946ea005c531ce/xajijaruxilezegokemubuze.pdfIn PDF document text
    • https://raljob.com/userfiles/file/90788749793.pdfIn PDF document text
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/sp5vrjv3sd2u891ujk5s2v5iq1/21451563422.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b4c906b4b8d---21829281288.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160737278d9713---79368688278.pdfIn PDF document text
    • http://sung1.com/upload/files/79655777259.pdfIn PDF document text
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/bc9301a2dab16210a9340e453186fe35/48263003428.pdfIn PDF document text
    • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/0123652f95111a70c0d47f90d7394c25/kobagewewupusiwuberofunuk.pdfIn PDF document text
    • https://fuchscars.com/wp-content/plugins/super-forms/uploads/php/files/f305a0e113b3c08d9e2bd3126825efea/52768815492.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=batman+the+dark+knight+in+tamilyogiPDF 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_off0000e5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FE 22140 bytes
SHA-256: 2bda5d4a3dfb4855d19435683ed073fefb0f83cd2aec82845f6553a2e13e9af5
font_01_sfnt_off00011ce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CE9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13500 10784 bytes
SHA-256: 1c71aa88b21b4328da63f3f5987269a32f5f788111a882187b44296c95b63620