Malicious PDF — malware analysis report

Static analysis result for SHA-256 726a263752bc87bb…

MALICIOUS

PDF

158.6 KB Created: 2021-12-07 02:46:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-12
MD5: e2cae9b0f7bde593dd31637be33cef65 SHA-1: 63bfd86ab19cb498457110ab5ff3e02281bf345c SHA-256: 726a263752bc87bb1bf535f89df8c14c97289431fc74c484749b153c93fd66ab
181 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9416

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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://alshuka.ps/ckfinder/userfiles/files/9007602636.pdf In PDF document text
    • https://limblength-sldf.fasamra.com/userfiles/file/48511952137.pdfIn PDF document text
    • https://equinox-e.com/upload/files/kazivulovesupamegatijap.pdfIn PDF document text
    • http://maryalo.com/userData/board/file/kotozapuz.pdfIn PDF document text
    • http://halaljones.com/uploads/files/18976319201.pdfIn PDF document text
    • http://savalis.ru/userfiles/file/87526034345.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1618aae7ba9762---kixuxidof.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161aa73700775a---pumuwirubukapo.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615a1ec71eca6---kuleligowaniduza.pdfIn PDF document text
    • https://roland-toys.eu/userfiles/file/41852416067.pdfIn PDF document text
    • https://powerliteaac.com/userfiles/file/75929593909.pdfIn PDF document text
    • http://hanleyresources.com/images/74248764200.pdfIn PDF document text
    • http://3dtechgroup.com/uploads/image/files/fadiboxu.pdfIn PDF document text
    • https://hensuyenpqa.traigiongthuha.com/ckfinder/userfiles/files/95851121321.pdfIn PDF document text
    • http://atem.sciara.eu/public/upload/file/kupanudixofa.pdfIn PDF document text
    • https://charlesstreetvideo.com/userfiles/file/nakazaregejupamumo.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155e1ea8c03d---11211037316.pdfIn PDF document text
    • https://tekstilkentrehber.com/upload/ckfinder/files/92574105814.pdfIn PDF document text
    • https://ourcampuswindow.com/ckfinder/userfiles/files/64387155650.pdfIn PDF document text
    • http://pp-aqua.com/userfiles/files/vugized.pdfIn PDF document text
    • http://khmim.com/ckfinder/userfiles/files/47728379328.pdfIn PDF document text
    • https://km2804.com/ckupload/files/sekekumogi.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/161662a1b594c4---15755872574.pdfIn PDF document text
    • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/15f83f163d65e25737aacad4cf8d9f4b/5464975415.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1617b71503452f---80755524174.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/5bhJmFgkeCE/uplcv?utm_term=ho+hey+lumineers+piano+sheet+music+freePDF 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 extracted file (font_00_sfnt_off00020bf3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00020bf3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020bf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20BF3 18188 bytes
SHA-256: 63949c8527d689f2c7ccb3154a155a4419a9be1101da38d5edf513ae69b36136
font_01_sfnt_off00023b90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23B90 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00025234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25234 10948 bytes
SHA-256: cbfa8bdc91281a95aef882f39a9e84f2821f11bbc28bde3cd2326ef22408a192