Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd74e74bde8041ec…

MALICIOUS

PDF

80.2 KB Created: 2021-10-07 15:36:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: dc86e6f77159a3c6a3fc615594e174ff SHA-1: d75f4c1fe2d52642f9cfcc86d3dcd7f87974cff2 SHA-256: cd74e74bde8041ec3f41182244b5369ea8478948b608ba81e3307909bf7dc5ec
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://ketchas.ru/uplcv?utm_term=heads+up+on PDF link annotation
    • https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/64712258690.pdfIn PDF document text
    • https://geneticapanama.com/userfiles/file/nuvuloroneridamojexavulad.pdfIn PDF document text
    • http://betonkeritesek.eu/Content/files/22586023191.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/0db64f74a243750e08c5e5b25c60d1ab/bedapefizabelabiligo.pdfIn PDF document text
    • https://ezsprinting.com/userfiles/file/23205589277.pdfIn PDF document text
    • http://wildpflanzen-planung.de/file/mibapufedatonabizeriletus.pdfIn PDF document text
    • http://nasfthr.com/userfiles/file/nanuzunixo.pdfIn PDF document text
    • http://horizonpestservices.com/userfile/vitabadefegapa.pdfIn PDF document text
    • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/58f59682ac99d80041fbf1209aa9070f/65442472343.pdfIn PDF document text
    • http://e-menu.hu/editor_up/30502793042.pdfIn PDF document text
    • http://pevak.info/UserFiles/File/13860866349.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/89770601170.pdfIn PDF document text
    • http://biosystech.com/pdsFck/file/rafemuvisejawataxigupixa.pdfIn PDF document text
    • http://siltukai.lt/userfiles/file/36297069121.pdfIn PDF document text
    • http://keitbg.com/images/files/50272869418.pdfIn PDF document text
    • http://isystemlab.com/admin/ckfinder/userfiles/files/benorarexenibolup.pdfIn PDF document text
    • http://daieimotors.com/js/upload/files/tefimidugijosuzat.pdfIn PDF document text
    • http://lovec.bg/root/ckfinder/userfiles/files/lomelexeseropam.pdfIn PDF document text
    • https://limadelimon.com/images/file/pakogizasikiwiwab.pdfIn PDF document text
    • http://hcbarrett.com/user_area/file/91774653961.pdfIn PDF document text
    • http://thienthaopc.com/upload/FCK/file/katojasoraru.pdfIn PDF document text
    • http://gourmethousemacau.com/UploadFilesfile///fisibanatinakiga.pdfIn PDF document text
    • http://eperon-kochersberg.com/img_db/84447960126.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_off0000d350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD350 18976 bytes
SHA-256: 5f80b45d0660a4f342b6961acedfce887f644fe120108e4d6b4ade407c6843f5
font_01_sfnt_off0001050d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1050D 10140 bytes
SHA-256: 47aa222d700fd3d75ede432534be5b2e5434a80ef7ae35d2721b36d48700b266
font_02_sfnt_off00011bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BBA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1