Malicious PDF — malware analysis report

Static analysis result for SHA-256 f876ac5a96b583ab…

MALICIOUS

PDF

70.9 KB Created: 2021-10-04 08:02:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 683c6973aa22a22ed84e1c878cee573b SHA-1: 95deaf6a292e13e3f7927f096a7c11dac02c85d5 SHA-256: f876ac5a96b583abaef22ed34529ebd2f46f6872806beff074234eb031beba87
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613abb4765872---17974051379.pdf In PDF document text
    • http://doggystylzgrooming.com/admin/photos/file/nikepoga.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/0029uc4f3n95vhj5j2uqfl3ref/sabifolebe.pdfIn PDF document text
    • http://investgeorgia.ge/userfiles/file/83670070330.pdfIn PDF document text
    • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1614fb59364e9b---levetugod.pdfIn PDF document text
    • http://scarpatti.com/files/43097876187.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/09736edaf87d9454e47165cca3d29401/96113081753.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16136c5d867751---61529154188.pdfIn PDF document text
    • https://kalashad.com/userfiles/file/ruwomevaxalulo.pdfIn PDF document text
    • https://nffcd.org/userfiles/files/matirereba.pdfIn PDF document text
    • https://techielingo.com/fck_uploads/files/tusobaxave.pdfIn PDF document text
    • https://bomando.bomsolar.com/uploadfiles/files/73926260118.pdfIn PDF document text
    • http://gruaszarate.com/ckfinder/userfiles/files/41146995982.pdfIn PDF document text
    • https://willmarareachamber.com/ckfinder/userfiles/files/wigikukamurigikuwazazixi.pdfIn PDF document text
    • http://artin-intranet.com/ckupload/files/biwuwosuv.pdfIn PDF document text
    • http://malerbetrieb-malanders.de/Webseite/pics/fotos/1/file/jezudupaf.pdfIn PDF document text
    • https://novitas.ro/files/19215164074.pdfIn PDF document text
    • http://www.biogreeno.com/cms/ckfinder/userfiles/files/sujoluvurupavisisover.pdfIn PDF document text
    • https://thegioibaobicarton.com/Images_upload/files/mamojepulapitebopow.pdfIn PDF document text
    • https://ismart99.net/upload/files/magibosewerominav.pdfIn PDF document text
    • http://snieznik.pl/userfiles/file/11934249735.pdfIn PDF document text
    • https://wodepcb.cn/uploadfiles/files/92871170841.pdfIn PDF document text
    • http://wimborst-ceramics.nl/ckeditor/ckfinder/userfiles/files/supin.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=chronic+bronchitis+in+toddlersPDF 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_off0000b39a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB39A 16632 bytes
SHA-256: f43cd724a108475f30a6aa724074ed6e87301ff78d4e7cff7fe8fe5cfa363daf
font_01_sfnt_off0000ddcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDCF 10476 bytes
SHA-256: 0bc4e5a69bcf449bd20a4c1c3165dbe0fc4cd265483de4344d7be4f6a9118274
font_02_sfnt_off0000f585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF585 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1