Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f2a31c7698a7d0…

MALICIOUS

PDF

98.7 KB Created: 2021-09-05 21:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: a158662fb8ea9026533d79e2fd64f4ff SHA-1: b8806a26cc17618d4105a673a8714cb16aeec20f SHA-256: f2f2a31c7698a7d03d3b700774fd263b3400e23893c87db9a39db48ea1113551
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/3672297e87a9d94d475087a945d2612b/fawev.pdf In PDF document text
    • http://www.centralperdana.com/file/tijamojizug.pdfIn PDF document text
    • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609d688985f85---pejef.pdfIn PDF document text
    • https://samsungvrvklima.com/upload/ckfinder/files/pabokilixegixisiju.pdfIn PDF document text
    • https://hospvetcentral.pt/site/upload/file/doripesigikupod.pdfIn PDF document text
    • http://ordinate-ltd.com/file_media/file_image/file/puketezopetit.pdfIn PDF document text
    • http://xn--aknmedcal-wpbe.com/uploads/file/pokowilato.pdfIn PDF document text
    • https://digitaluzaktanegitim.com/calisma2/files/uploads/kijijawezineramusomuzaz.pdfIn PDF document text
    • http://tcgardening.com/userfiles/file/2021080721331673499.pdfIn PDF document text
    • http://strandedtattoo.net/file/97733251555.pdfIn PDF document text
    • http://share-world.tw/userfiles/file/potiladuxivejo.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b94824eddf9---90643540809.pdfIn PDF document text
    • https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/tk9e52t597gv23lbhe24od79b4/kaxifatigu.pdfIn PDF document text
    • http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160be68bd26429---kexejixuxujo.pdfIn PDF document text
    • https://agatanorek.com/files/file/xuxubisobegim.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611ca3a96d782---xipirojipegumano.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad7e7695b3---feraga.pdfIn PDF document text
    • http://heureka-cz.eu/files/natusofadifodezesasimekov.pdfIn PDF document text
    • http://klick-tipp.info/ckfinder/userfiles/publics/files/51777224336.pdfIn PDF document text
    • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/d39c62cdc27af99e37073517785bed8d/99358656594.pdfIn PDF document text
    • https://relaxbotanika.cz/ckfinder/userfiles/files/52484413491.pdfIn PDF document text
    • http://balone.net/_upload/file///65378671470.pdfIn PDF document text
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/8b8f48047d511e05cecbff2699f828be/12602750682.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=parafrasi+primo+canto+purgatorio+pdfPDF 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_off00011ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EF9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001370b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1370B 17412 bytes
SHA-256: f549be6d5d5bd16bd5e7cc9ed8d004a4b576bb0c3a43e1192d1030fbd440912e
font_02_sfnt_off0001646f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1646F 10884 bytes
SHA-256: 12f977435ec3fbb56b7493157ae8a78331f3b506776a260f4431b0147c0ff4f5