Malicious PDF — malware analysis report

Static analysis result for SHA-256 941647d02e85e4b9…

MALICIOUS

PDF

73.2 KB Created: 2021-09-02 08:15:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 369476eee27f8c7c5c9819b297383b7a SHA-1: ce09543dbf2b1d3b00fde1dd08846796c4c67b7c SHA-256: 941647d02e85e4b9824316c6e579f6528e076df04d18c67e42c5d183d84d1113
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resonanceacteurs.nl/userfiles/file/84925202753.pdf In PDF document text
    • http://oishisushigd.com/uploads/files/69889904983.pdfIn PDF document text
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/b71cb51b3f4c0bb49de65413daa060a7/gilunuvavolomifu.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/211ecf41a50d4e758e2df80a61734f81/67683232772.pdfIn PDF document text
    • https://publicbridge.pl/userfiles/file/zodemulasotowosiwuburoxe.pdfIn PDF document text
    • http://vom-ragnaroek.de/uploads/file/doluwovavozokofituza.pdfIn PDF document text
    • http://elpijisystem.com/file/16482222245.pdfIn PDF document text
    • http://clubesquilacoma.com/uploads/files/16349136670.pdfIn PDF document text
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607a403679407---numokotifa.pdfIn PDF document text
    • http://cephedanismani.com/images/pages/file/18594875900.pdfIn PDF document text
    • http://fanghsin.com/uploads/files/202108242220471705.pdfIn PDF document text
    • https://vsetinrally.cz/userfiles/file/sajubojudapasukapupok.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799f2f3750f---kajiz.pdfIn PDF document text
    • http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3b76344cb---36376094536.pdfIn PDF document text
    • https://miguktour.com/FileData/ckfinder/files/20210819_93EA7EBA3A07E901.pdfIn PDF document text
    • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/nojegosevakimurowumiz.pdfIn PDF document text
    • http://chiesamadremarsala.eu/userfiles/files/zeralisexefugejixag.pdfIn PDF document text
    • http://homelife-superstars.com/image/files/leralipeligutorit.pdfIn PDF document text
    • https://anmoul.com/userfiles/file/jorifirozorufujazabatox.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607626d78eabc---7063406280.pdfIn PDF document text
    • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/0a6b297bf8415dd916153e08a4f77f1c/mukolinujes.pdfIn PDF document text
    • http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/7ill14itag23tcehjnjd93jja1/13701384057.pdfIn PDF document text
    • https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/4dbbe3e32066b56ace0bab4b2035239a/13761467485.pdfIn PDF document text
    • https://ipssecurityconsultants.com/ckfinder/userfiles/files/81903907033.pdfIn PDF document text
    • http://xn----8sbfhu6ab4bqv.xn--p1ai/userfiles/file/wasatefazazovenogapevez.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=adjectives+worksheets+with+answersPDF 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_off0000bd31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD31 10776 bytes
SHA-256: 1e424cd772979f2d228be168cb4fdc3edb87103bfb7ff7395b5c8ca80c979dbf
font_01_sfnt_off0000d5ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5FF 15536 bytes
SHA-256: 470e95edded690d77ff289be786502fe78d07297fa685a651bcaf972e046c6d0
font_02_sfnt_off0000fce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1