Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e452be8000ff59…

MALICIOUS

PDF

76.6 KB Created: 2021-09-13 07:20:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 5b03c637ca6388d0282e0a6c980d262d SHA-1: 68e9b5c2f4a2ac8be21b6c0921d4cd314b999d7a SHA-256: d3e452be8000ff59c04de4f0c2ee004d2465289bb4ba246740e4270f0e487d72
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://nomylo.ru/uplcv?utm_term=acr+pro+33.4+apk PDF link annotation
    • http://mibenjamin.com/userfiles/file/8658363340.pdfIn PDF document text
    • http://rudolphi.nu/userfiles/file/lujor.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161363a7511186---pibarerekojebijume.pdfIn PDF document text
    • http://altinay-law.com/images/file/42182300564.pdfIn PDF document text
    • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/8f902f035a10e214385d032c998f38a8/55702770644.pdfIn PDF document text
    • https://bokaichenyu.com/upload/files/mujovejewuxuzanimizuzufir.pdfIn PDF document text
    • http://cdkuys.handysociality.com/upload/files/tuzovusugotaxadexafizirov.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd81171a41---nowibixu.pdfIn PDF document text
    • http://electrogalicia.com/electrogalicia/recursos/archivos/12766265747.pdfIn PDF document text
    • http://xn--h1aeekk.xn--p1ai/files/file/wososunimeka.pdfIn PDF document text
    • https://bonaparte.cappencms.com/templates/files/birawekevep.pdfIn PDF document text
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/f4eb72986263588ad831265a5ca1de6f/51752169945.pdfIn PDF document text
    • http://droprint.my/home/ququ4923/public_html/userfiles/file/66344020045.pdfIn PDF document text
    • http://thayloilocnuoctaihanoi.net/upload/files/19263390356.pdfIn PDF document text
    • https://stallion-international.com/userfiles/file/vivobamenupeliteki.pdfIn PDF document text
    • http://smwiarus.pl/ckfinder/userfiles/files/37296965813.pdfIn PDF document text
    • https://npkfertilizerproduction.com/d/files/10260949096.pdfIn PDF document text
    • http://pokorny-podlahy.cz/UserFiles/File/gejedapukanabetewube.pdfIn PDF document text
    • https://vegas-shop.net/uploads/files/57504064100.pdfIn PDF document text
    • https://turkuazhost.com/calisma2/files/uploads/xarobeketeleviremutitoba.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/161311e53b67b7---18820545402.pdfIn PDF document text
    • http://ulsantour.com/FileData/ckfinder/files/20210911_25AA2A0E06D63719.pdfIn PDF document text
    • http://bbpcosmetics.com/admin/upFiles/2021-9/file/71471950789.pdfIn PDF document text
    • http://tehpromyar.ru/media/file/14630683183.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_off0000c70d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC70D 10116 bytes
SHA-256: 8d38dc865166919d1c937dc31a4d628fd55a07b8280d70bd48ecf73ca4e604cd
font_01_sfnt_off0000ddd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E4 18576 bytes
SHA-256: 41de4872139a80097f1d9b06e8a3d6f579b574722db0ee1420d0958bdec2b8c2