Malicious PDF — malware analysis report

Static analysis result for SHA-256 47823521ff8d4c59…

MALICIOUS

PDF

398.9 KB Created: 2022-03-07 06:11:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 4c0a3c51843d064e9c9363c9a198a7d4 SHA-1: 1403660a0cf8548634e207c97cb24862f99a51e4 SHA-256: 47823521ff8d4c59ab3741208d79b1eb0b47e0ece4ebe12d727d85e255c05537
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=what+is+economic+recession+pdf PDF link annotation
    • http://www.alarconarista.com/images/file/99758535338.pdfIn PDF document text
    • https://megashina24.ru/files/files/77070761062.pdfIn PDF document text
    • https://pushtypathshala.com/demo/aims/files/images/files/ravurawevudivoju.pdfIn PDF document text
    • http://wsystem.sk/userfiles/files/43203287472.pdfIn PDF document text
    • http://instit.ac/ckfinder/userfiles/files/forawijogibuli.pdfIn PDF document text
    • http://erh-hu.com/userfiles/file/13675190931.pdfIn PDF document text
    • https://decordesign.bg/admin/files/files/64585275067.pdfIn PDF document text
    • https://berker-rozetki.su/kcfinder/upload/files/zigijolejowo.pdfIn PDF document text
    • http://faithhh.net/js/kcfinder/upload/files/fevusemujufovawaxe.pdfIn PDF document text
    • http://555banket.ru/kcfinder/upload/files/78644201232.pdfIn PDF document text
    • https://maxlinder.com/admin/assets/ckfinder/userfiles/files/73169014210.pdfIn PDF document text
    • https://safetyhanoi.com/userfiles/file/73438261522.pdfIn PDF document text
    • http://www.xtraordinaire.org/web/kcfinder/upload/files/86677951490.pdfIn PDF document text
    • http://kzlo.pl/fotki/fotki/file/47400966761.pdfIn PDF document text
    • http://hcvitamin.com/webroot/img/files/rebujit.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/411d611e20cb0c1a5e4e3c17ee2c38c0/77011489612.pdfIn PDF document text
    • https://www.marmaclbd.com/assets/ckeditor/kcfinder/upload/files/88462164094.pdfIn PDF document text
    • http://unipsyclinic.com/userfiles/file/20220221093703.pdfIn PDF document text
    • https://roarmysecurity.ro/mm/file/61573814679.pdfIn PDF document text
    • http://erodiertechnik-wenzel.de/userfiles/file/gikopoxufo.pdfIn PDF document text
    • http://stmrcstvm.com/userfiles/file/12103159629.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/narixotigafera.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/162104fefdda0e---zipilawogawurabitemoz.pdfIn PDF document text
    • https://sua.vn/uploads/userfiles/file/67114658849.pdfIn PDF document text
    • http://numberprotect.com/admin/kcfinder/upload/files/ludufepepovijekukabon.pdfIn PDF document text
    • https://jotelek.hu/files/file/1476531027.pdfIn PDF document text
    • http://sb555.com/photo/file/bipepor.pdfIn PDF document text
    • https://skvely-kup.cz/files/file/18335862197.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16215ea4c43176---4724668673.pdfIn PDF document text
    • http://modellcsoki.hu/admin/kcfinder/upload/files/34671445744.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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c3d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3D2 21368 bytes
SHA-256: dc91aebe95f00d5945d01dc1065a4f23fc930985a37a26305fde857867169877
font_01_sfnt_off0005fc35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC35 10832 bytes
SHA-256: 6f03837b74b0350b1e6d40642672fe9d83556655df57fef4ab30398c88474b94
font_02_sfnt_off00061508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61508 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9