Malicious PDF — malware analysis report

Static analysis result for SHA-256 7934173d79248dd1…

MALICIOUS

PDF

84.1 KB Created: 2021-10-29 07:25:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 560bf1819981b4db192ecb331f795bf3 SHA-1: 6cd6550c018350d6e6a828d8f8698bd64aa4b61c SHA-256: 7934173d79248dd19c1a0636a30df473a718dbba17f61be2b0d83e0fb3148f16
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 http://areopag-group.ru/sites/default/files/uploads/xalewajixugadamifesasuz.pdf In PDF document text
    • http://ministryofrum.com/memlogos/file/fegoxetefowopozib.pdfIn PDF document text
    • https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/bolinagem.pdfIn PDF document text
    • http://gandolfiarchitetti.com/userfiles/files/72443462840.pdfIn PDF document text
    • http://eksternest.be/images/file/29065629791.pdfIn PDF document text
    • https://ceiling.holcom.vn/webroot/img/files/zavugavuxuseb.pdfIn PDF document text
    • http://bright-inter.com/file_media/file_image/file/retiditudibose.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f1425387cd---gugemop.pdfIn PDF document text
    • http://alfadent-volg.ru/images_uploads/files/vitevorezinosisurakuze.pdfIn PDF document text
    • https://destination.irinadempsey.ru/userfiles/file/87250018807.pdfIn PDF document text
    • https://soccerauquebec.com/userfiles/file/varaboribigi.pdfIn PDF document text
    • https://infrastone.com/userfiles/files/majulivojopazeji.pdfIn PDF document text
    • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615f3c28e5e21---6873968234.pdfIn PDF document text
    • https://speedwayinfo.hu/uploads/file/83847362900.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/161327d89c9ba4---53363089456.pdfIn PDF document text
    • http://vasekurzy.cz/userfiles/file/sasujiti.pdfIn PDF document text
    • http://pierrevillers.fr/mairie_files/file/23406814551.pdfIn PDF document text
    • https://9ja-bet.com/userfiles/file/92462195918.pdfIn PDF document text
    • https://monyetjoget.com/contents/files/wisedixowoxixawamaduxopu.pdfIn PDF document text
    • http://cnc-soustruzeni.cz/files/file/86871009658.pdfIn PDF document text
    • http://bassbasement.org/userfiles/file/52007652096.pdfIn PDF document text
    • http://detskaoptika.cz/ckfinder/userfiles/files/lerumov.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161769062de838---bazoxalogarunulosopis.pdfIn PDF document text
    • http://abbeytraining.net/userfiles/file/18766965641.pdfIn PDF document text
    • http://faw-asia.com/image/upload/files/gegibiwapizitezujodoxeb.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/7xhmvLXWVJc/uplcv?utm_term=one+grapefruit+a+dayPDF 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_off0000e518.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE518 17412 bytes
SHA-256: 54cf8db4f01b8f11820537ef2d76f8ad80f7c96f7d68004977d4b0dd1ee07c50
font_01_sfnt_off0001122f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1122F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012a46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A46 10576 bytes
SHA-256: 2906388c73d71bd78f968eedcb823d1019b7c843f1f9d19d8c815965c7bd1baa