Malicious PDF — malware analysis report

Static analysis result for SHA-256 425962ce8098e995…

MALICIOUS

PDF

78.1 KB Created: 2021-09-03 16:10:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 0029d3578098db9264a6a11795f14a17 SHA-1: d81b6b33d159530906005d554341591eced2841b SHA-256: 425962ce8098e995bb4d6e9720007ebc8f256c9feb971bd025eafad92e0e2a08
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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 https://callmarkinvestments.com/callmark/files/56375696737.pdf In PDF document text
    • https://instalacje-elektryczne.net/ckfinder/userfiles/files/rinexujigabezesar.pdfIn PDF document text
    • http://cartopack.com/Images/file/67071818874.pdfIn PDF document text
    • http://j-club.eu/userfiles/file/gowesugasujugunikajo.pdfIn PDF document text
    • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/9a98108b435a59b69f7c890d85ec3cad/wojazofomukederivago.pdfIn PDF document text
    • http://ttccid.com/userfiles/files/bajurukamokej.pdfIn PDF document text
    • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/a930e0dd5e9a185acaed6c37e7fdcf18/97000182443.pdfIn PDF document text
    • http://funperm.ru/content/file/xibakowewudib.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/5mlp6ke9vkd9ddmbl52h5k1985/riguno.pdfIn PDF document text
    • http://rocb-ap.org/file_media/file_image/file/pakesokanemelojurado.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e84fcfd00dc---musukekexudidelazemuvezo.pdfIn PDF document text
    • http://tsradviseurs.nl/mailing/images/photo/file/51174924620.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/a7cc5ce51197140814baa730f4a40613/minutelonejinas.pdfIn PDF document text
    • http://filtrydokoparek.pl/img/all/71158086422.pdfIn PDF document text
    • http://alpha-th.com/userfiles/file/2198175061.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/g3gf92s5nen82r68embb74cst4/tejifibofumejusimofa.pdfIn PDF document text
    • http://sun-eko.eu/files/file/zabulitidude.pdfIn PDF document text
    • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d327b750e28---nuputojogan.pdfIn PDF document text
    • http://www.gonouvellezelande.com/files/sogerurokuxevusopogo.pdfIn PDF document text
    • http://rulada.by/upload/editor/files/dowobudupemujilepufexexo.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160969891cf6e0---12669101900.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=manual+burr+grinder+canadaPDF 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_off0000ce68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE68 17616 bytes
SHA-256: 7a416759b5e90ae2fb5b19bd8c533ee81455b1f8569cfe0dc160a65114dcea30
font_01_sfnt_off0000fc31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC31 10392 bytes
SHA-256: c9a9eb33a3967f985f64a4958873820bad5bc8bf7f10b79d5e6becf625afbf95
font_02_sfnt_off0001138a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1138A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1