Malicious PDF — malware analysis report

Static analysis result for SHA-256 e456bdd43fa48f28…

MALICIOUS

PDF

119.2 KB Created: 2022-02-07 00:11:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 1f1a920a47447eafda9f76c444c41951 SHA-1: cf0cc39051cf651a7b0873f3c9a186338c93c52c SHA-256: e456bdd43fa48f285d9d281973142a22fb2d3f0cbf69cbaacb63aea7e1e0bf63
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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 https://podar.co.za/XSRYdR1H?utm_term=fossology+installation+guide PDF link annotation
    • http://bratislava.topenglish.sk/app/webroot/gallery/files/sezilipogunuvufuf.pdfIn PDF document text
    • http://co-mit.com/uploads/files/ditud.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613404f06880d---63114571815.pdfIn PDF document text
    • https://dhins.com/testingsites/advantage_aviation/assets/media/file/gemavegowo.pdfIn PDF document text
    • https://www.saags.edu.bd/assets/ckeditor/kcfinder/upload/files/saxaw.pdfIn PDF document text
    • http://dentalweek.eu/userfiles/files/zubukizut.pdfIn PDF document text
    • http://afksport.cz/upload/files/nazoju.pdfIn PDF document text
    • https://arerp.kr/data/file///gasolesawidezutureguwa.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/f92f5a0a398c468913547165479db29c/pofaxuga.pdfIn PDF document text
    • https://alasclub.gr/neuro/ckfinder/userfiles/files/likejogupifox.pdfIn PDF document text
    • http://minhphucvietnam.com/uploads/userfiles/file/74264834520.pdfIn PDF document text
    • http://leebyunghun.org/new/upload/board/files/javufodewibutaj.pdfIn PDF document text
    • https://terracell.pt/images/file/8406664483.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1619ac84ac6a6a---maguwobuzedileruzudelolud.pdfIn PDF document text
    • https://pcetravel.com/files/file/xenujukaruvozazaloxigawos.pdfIn PDF document text
    • http://sro52.ru/uploads/files/denipipubi.pdfIn PDF document text
    • http://methese.com/upload/files/2798076017.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e4ab2ab8e---logojak.pdfIn PDF document text
    • http://webinaris.net/ckfinder/userfiles/publics/files/95713893856.pdfIn PDF document text
    • https://www.carnesvarejo.com.br/assets/ckfinder/core/connector/php/uploads/files/mekuxogogixeraruneveji.pdfIn PDF document text
    • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/3a954582733301083512f5011c70a4d8/47607478131.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 extracted file (font_00_sfnt_off00016ed4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00016ed4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016ed4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16ED4 18404 bytes
SHA-256: ae86ad91e3489a42803473c04852975498c1004e81c1d726120bfd1b6aae6c1c
font_01_sfnt_off00019fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19FBC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0001b6dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B6DC 10512 bytes
SHA-256: 839a6cdb196b138301e9ef468b9deffc7d9e5e39e54b5d3b595737ca87fe6fab