Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7c04a5ec056e47…

MALICIOUS

PDF

81.0 KB Created: 2021-09-23 12:16:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 0614cb9fc1153e8ab2357a049ea93555 SHA-1: 35ca4ae1d2f170311d5ef42286502288674da8b6 SHA-256: cd7c04a5ec056e471b4a1fd226eb3a2632c027b21747dc41ed31d7f0cd2c4f48
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

Heuristics 7

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://chcial.ru/uplcv?utm_term=how+to+hack+wifi+qr+code PDF link annotation
    • https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/rolibaz.pdfIn PDF document text
    • https://ijtm.in/userfiles/file/97002943861.pdfIn PDF document text
    • http://ranchobg.com/img/file/89180558585.pdfIn PDF document text
    • http://nhadep30giay.com/uploads/image/files/pafurexuzim.pdfIn PDF document text
    • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/cc47fb90d2c20f01c2f5a164871d8df5/karezakilodopi.pdfIn PDF document text
    • http://tjjjsh.com/uploads/files/puzefimimoz.pdfIn PDF document text
    • https://condicionamentofisico.com/arquivos/file/56199751710.pdfIn PDF document text
    • http://domuran.pl/files/file/41277685522.pdfIn PDF document text
    • http://perchegouet.com/ckfinder/userfiles/files/77326982147.pdfIn PDF document text
    • http://marklaliberte.com/fckupload/file/40669925702.pdfIn PDF document text
    • http://shyjjc.com/v15/Upload/file/20219418568673.pdfIn PDF document text
    • https://softwebstar.com/shop/userfiles/file/87006043290.pdfIn PDF document text
    • http://uzmansporzeminkaplama.com/resimler/files/80537088609.pdfIn PDF document text
    • https://indiansecuritisation.com/ckfinder/userfiles/files/xefugagexorurivofuvowek.pdfIn PDF document text
    • https://seltec.io/images/uploads/files/33168746191.pdfIn PDF document text
    • https://agrilaui.com/userfiles/file/41534996557.pdfIn PDF document text
    • http://racecross.com/upload/edito_fckeditor/file/4544703093.pdfIn PDF document text
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1613c8981c408a---25078519441.pdfIn PDF document text
    • https://sapporomn.com/userfiles/files/wuxakatumavifofuzenire.pdfIn PDF document text
    • http://thietkewebsite.btccorp.vn/uploads/files/59533947946.pdfIn PDF document text
    • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138ab5f2aae3---sagime.pdfIn PDF document text
    • http://dgelc.com/userfiles/file/20210918152525.pdfIn PDF document text
    • http://www.springperfect.com/upload/finder/files/4682494003.pdfIn PDF document text
    • https://debcopharma.com/userfiles/file/52979216647.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/rikalelilive.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/161304489dfdde---bumef.pdfIn PDF document text
    • 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_off0000d834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD834 10572 bytes
SHA-256: 02967d10a2b89feadf91b2b3ab42f25fc95165fcfef4eb7896f9b264de14769a
font_01_sfnt_off0000f048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF048 17624 bytes
SHA-256: 835d1c311f053b7214f2e4e511b66b1b48cb41585d8a9c9a55493e8f625df1bc
font_02_sfnt_off00011e0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E0C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1