Malicious PDF — malware analysis report

Static analysis result for SHA-256 941d50d414b7cf52…

MALICIOUS

PDF

87.4 KB Created: 2021-08-08 05:32:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: bfe82e849de09cafd503267f3e4bff8b SHA-1: 935d03970df07a5d7cbfd27af90d58ab27e82aed SHA-256: 941d50d414b7cf52e59b8eb96a84f1d907e9be0f65a04074b798e032551ae72d
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://obermeyer-modemarkt.de/upload/file/dekomotabejugulatuvi.pdf In PDF document text
    • http://galluccifaibano.it/userfiles/file/fekomofoba.pdfIn PDF document text
    • http://accessiblevehicleservices.com/userfiles/file/gugozofanoje.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608975f388f94---pebujisotagesof.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d015badfc06---tonugam.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070dc00bc46a---88056726620.pdfIn PDF document text
    • http://xn----8sbemnkjd7bfu.xn--p1ai/design/img/upload/file/gopoxobakafad.pdfIn PDF document text
    • http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160f73020ca040---bejosibokaxux.pdfIn PDF document text
    • https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/726addb5e66446177d5c5feb46a0dab5/27654142059.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user///file/_0112145001620814600.pdfIn PDF document text
    • https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/59e645b3814b1194850e56c0e4613110/11666570276.pdfIn PDF document text
    • http://mmbc.cz/_data/user_files/file/nobeve.pdfIn PDF document text
    • http://4grd.com/cmsimages/file/kazopokax.pdfIn PDF document text
    • http://immobilieninvestors.org/userfiles/file/86360122853.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e2d432600bb---jobajepiwudovepavupiju.pdfIn PDF document text
    • https://chetanaus.org/bheru/uploadfiles/file/gafolojapabi.pdfIn PDF document text
    • http://emailreceptionist.net/userfiles/file/jokija.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f475e83a429---kuwofipavagubolevom.pdfIn PDF document text
    • https://bilalyapidekorasyon.com/userfiles/file/bajewuratukadel.pdfIn PDF document text
    • http://griesvoegwerken.nl/UserFiles/file/kitelomisigexibegituxazeb.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/7be6b9174e6b1d052e9e009c5d6488eb/rapuvejusakelasarikejit.pdfIn PDF document text
    • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7367af6bb---dumare.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+get+a+free+iphone+surveyPDF 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_off0000ed92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED92 10948 bytes
SHA-256: cf74d19d61f3600189ae5dd028cbf7ebfdc73d76957b08f81f0d2a2f51d05e89
font_01_sfnt_off000106f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106F8 17956 bytes
SHA-256: adf5efcbe8cde242202ac4eaffee593219aab09998dd3eab9d8e8bf34ed1b1d0
font_02_sfnt_off00013611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13611 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1