Malicious PDF — malware analysis report

Static analysis result for SHA-256 425156fa9a6e7959…

MALICIOUS

PDF

93.0 KB Created: 2021-08-17 01:41:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: dfb2574dc57841f53035b95b37c52829 SHA-1: 89d0af320221aebb4ec98b0bee1babe6bfe1fe5e SHA-256: 425156fa9a6e7959d2109b77191e75664567d0ebdc747e2f746af92957019ad3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 6

  • 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.
  • 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://velocimapper.com//webfiles/file/wopededate.pdf In PDF document text
    • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0729cdb064---77601817127.pdfIn PDF document text
    • http://latexindia.com/userfiles/file/42793257355.pdfIn PDF document text
    • http://toddfamilyreunion.com/clients/4/48/482e924d5a052aa4a0c13eb8a30e0bc8/File/12984729373.pdfIn PDF document text
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/olh7t4p8c1pkuaib8d1l5qbq95/jezasugimafitezajolega.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/f0193c82208f0c169f507b0256c22795/75052457418.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/16e89e1d97374a33c25f983325a4d208/63682760120.pdfIn PDF document text
    • http://thietkewebbacninh.com/webroot/img/files/16277507936.pdfIn PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160848997ee3ac---67272054084.pdfIn PDF document text
    • http://vladjurnalist.ru/archive/file/sepusasalegirir.pdfIn PDF document text
    • https://rozgarnetwork.com/ckfinder/userfiles/files/fotunipojagofani.pdfIn PDF document text
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16097065268362---pevuxavilojikebewi.pdfIn PDF document text
    • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/45ae683a08a8f649c62be741ad930672/xosavomotukis.pdfIn PDF document text
    • https://hefcom-hydraulics.com/ckfinder/userfiles/files/xonigo.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b11e6b3c0f5---zunusibodidibole.pdfIn PDF document text
    • http://opakowania-loga.pl/zdjecia/fotki/file/dusaga.pdfIn PDF document text
    • http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb708db7e5---wezevoluw.pdfIn PDF document text
    • http://secohthailand.com/file_media/file_image/file/3182608788.pdfIn PDF document text
    • https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/790037b47c2de4226e82f09ce4012998/60957746485.pdfIn PDF document text
    • https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/39210922826.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a07c3abc95---30398306371.pdfIn PDF document text
    • https://elemonbg.com/Files/File/82854714215.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=negative+impact+of+social+media+on+christianity+pdfPDF link annotation
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94bf631878---xopiwub.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_off00010615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10615 11224 bytes
SHA-256: 437774a4a17bcfc633cc86024924dcecab85292cc0823e4eb71aa0018bc37c04
font_01_sfnt_off00011fff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FFF 16788 bytes
SHA-256: f90b4bc1e072ec6b39fa985645e192eb94fb9398f4b40d04581bc6aafa5c275e
font_02_sfnt_off00014c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14C02 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1