Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3154545fc3b270…

MALICIOUS

PDF

82.0 KB Created: 2021-08-24 18:30:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 10bee4b53575002be037ccec9d606b31 SHA-1: 885ed0f1f2c2ff174f0f14d609983541109a19be SHA-256: 4e3154545fc3b27035a2d692725dacd7d20494169a3d078cfaf214001acfca31
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 http://www.findvoters.com/userfiles/file/dewokilegetuniwomomed.pdf In PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c208435e7---kedavalalumukumuvipawi.pdfIn PDF document text
    • http://chamdure.com/DATA/files/54712514187.pdfIn PDF document text
    • http://picassogift.com/Uploadfiles/files/14879582590.pdfIn PDF document text
    • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/9f613420d6bd52245bdc74652e04395c/40954814315.pdfIn PDF document text
    • http://danangsculpture.com/uploads/image/files/76614341281.pdfIn PDF document text
    • http://www.santamyoga.be/images/file/84885301584.pdfIn PDF document text
    • http://museeducuir.org/upload/files/54483472729.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/k0mcmc5cu8otaqes6ojvtaltjs/90864000880.pdfIn PDF document text
    • https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/tpl9ba688lqtkllat7qmurdrhk/lotaxiligurasifeboxomig.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b7681ad9217---29652252847.pdfIn PDF document text
    • https://plagij.at/ckfinder/userfiles/files/87495391018.pdfIn PDF document text
    • http://vinhthuan.asia/upload/files/zedorago.pdfIn PDF document text
    • http://angeladaniel.eu/uploads/files/93320586798.pdfIn PDF document text
    • http://campbellelectronics.com/uploads/pixafewowatam.pdfIn PDF document text
    • https://glycocalyx.nl/userfiles/image/file/kifob.pdfIn PDF document text
    • https://whiteelephant.co.in/wp-content/plugins/super-forms/uploads/php/files/9e95e13103f046c605722f370f8a0b95/munilufuzerenusozalukib.pdfIn PDF document text
    • https://bedandbreakfastchia.it/userfiles/file/zetofufogazanidubi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=multiplying+fractions+with+variablesPDF 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_off0000dae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE6 17220 bytes
SHA-256: 905ff8189273f79d0ef74113e5f44ae7fdeecab221e1b01e7724abb9febe9ee7
font_01_sfnt_off00010800.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10800 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12017 11260 bytes
SHA-256: e24cd9571c25d57dd682b506f0fa47b684b0cc6ea9bc015a0b570650bf363bb9

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