Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a0f38033655806…

MALICIOUS

PDF

82.4 KB Created: 2021-07-01 17:31:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: cabbb8ac79e2613e929c48eb4269f05c SHA-1: ac640e2f262aa5a52729caaf47471b55baa8e125 SHA-256: 32a0f38033655806d1a05385893cd350f4e9e07a26ce769f9caac6992965449b
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to redirect users to malicious content. The presence of these links and the overall detection suggest the document is part of a phishing campaign or malware distribution effort.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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 https://chcial.ru/uplcv?utm_term=brother+sister+and+mother+having+sex PDF link annotation
    • https://securityguardsupply.org/php/uploads/file/zuvozokijususotegimovudu.pdfIn PDF document text
    • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/lcrdctdjnab5ohihl5io6g5itm/gotimubovigit.pdfIn PDF document text
    • http://aeronautike.com/userfiles/file/dusifetipolonimekusomu.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d2cd8feb0---67578593813.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/sobgmfd2ruhlssah8qgvjtc9c0/45687061403.pdfIn PDF document text
    • http://quincy.pl/ckfinder/userfiles/files/78014247461.pdfIn PDF document text
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082ae1bdf397---74871614099.pdfIn PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/011b15c626c2afaf9aed05efd78dceb2/46580898586.pdfIn PDF document text
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160b369822475c---9539250985.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/60279241484.pdfIn PDF document text
    • https://tsydesign.com/userfiles/jws/files/mabatuselofubikujowawowi.pdfIn PDF document text
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160add7305e1f0---30123171101.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160ab0ce84ceaf---paguladananetopitinupi.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160961e4c218e7---93628412557.pdfIn PDF document text
    • http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/90282591639.pdfIn PDF document text
    • http://kiuanai.com/userfiles/file/sikukupiwexuzegon.pdfIn PDF document text
    • http://sweetbasketsbyjackie.com/clients/864293/File/77004764302.pdfIn PDF document text
    • http://zonwering-belgie.com/ckfinder/userfiles/files/87838791814.pdfIn PDF document text
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16099d1acb2b11---47290050710.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7d975e042---1301160375.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/7k96rlhuvchdlstmtqi99j90d4/xogobiturebutuzekawavebil.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab1013e57e---63475123500.pdfIn PDF document text
    • https://prcomponents.com/ckfinder/userfiles/files/30430892265.pdfIn PDF document text
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c30354dabbf---rorupimutazadofod.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/44b9522e52eea89e5a16ca3ee281b051/9844324881.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_off0000dee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF700 10868 bytes
SHA-256: f704236bcda018e773b9e200609a721846239598ac1eb23c2996c2605cb68c22
font_02_sfnt_off00010fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FCC 17256 bytes
SHA-256: 1224e4fa8c35c9d2683ef18b512586dd6a8f3ea068f896c46443c6e1e39f728d