Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8a80a5fdab1263…

MALICIOUS

PDF

82.6 KB Created: 2021-07-27 22:08:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 8f450ffed0ce9b0758e9ae74f28d899b SHA-1: 7f92e6a14084c4a2b9681ff6611ef31d98d5f49a SHA-256: 5d8a80a5fdab126315626c2e30bc45594ba9b2eade572231b948e8d3b1042c02
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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 http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16085d54585d72---feleguxufutiriwiroze.pdf In PDF document text
    • https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/8f31abbd73e83247f13aa598076e6fbb/63603815718.pdfIn PDF document text
    • http://anysoldierfundraiser.com/clients/a/af/af293656121fcb8b60a8c910089dd81c/File/lenusevupo.pdfIn PDF document text
    • http://hrdiborice.cz/erucom1/files/files/zikaxinudape.pdfIn PDF document text
    • https://nevisnews.com/userfiles/kisipolawuzezo.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc3fc620ac---16859090180.pdfIn PDF document text
    • https://mldom.xyz/web/img/podborky/files/18861707334.pdfIn PDF document text
    • http://lawrence-spruill.com/clients/42275/File/xorigizatujo.pdfIn PDF document text
    • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078a9b3c7b24---51109843135.pdfIn PDF document text
    • http://pomodorolennep.de/gfx/userfiles/files/24271089976.pdfIn PDF document text
    • http://winteringlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/91910792225.pdfIn PDF document text
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/97gg6pbc9d8rpg4si9ee4j8hq0/vobobe.pdfIn PDF document text
    • https://alice-immo.com/userfiles/file/58172273135.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160941599c0f4e---dimuxapefux.pdfIn PDF document text
    • http://cgpreceptor.com/ckfinder/userfiles/files/fakuxugusojujodonegu.pdfIn PDF document text
    • http://castrolmintabolt.hu/images/upload/file/15980454626.pdfIn PDF document text
    • https://novamakine.com/upload/ckfinder/files/likukujexesagavevutajofuz.pdfIn PDF document text
    • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/2n7ug943gvq47c2bdmr2qu23gt/dewuwe.pdfIn PDF document text
    • https://alzubidi.com/userfiles/files/sulapit.pdfIn PDF document text
    • http://cestovni-postylka.eu/userfiles/file/37923708068.pdfIn PDF document text
    • https://callalilyvn.com/upload/files/38392653663.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/fb49lidpr693750ne4g4bk0bs7/puganodukexisikipo.pdfIn PDF document text
    • http://maremania.net/img_pagine/file/wasebuxawusuxegexukisiw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=la+la+land+main+theme+piano+sheet+music+pdfPDF 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_off0000e073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE073 16716 bytes
SHA-256: a36d24dbbc8489c47b5d8445c6d099ba0eb9f2622b17d1aa7b56cbb0b04e0500
font_01_sfnt_off00010c20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C20 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12437 10844 bytes
SHA-256: c23b5948839f960fb282177252478cecb76f249a2e2ab9df65333a12debc0c72