Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc70f633abb2a07…

MALICIOUS

PDF

328.0 KB Created: 2022-03-20 22:55:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: f43beeeb5c403d82892d57e78214df9c SHA-1: ed53674b59f3ae4e447c7bd10b188252a9df71cb SHA-256: 1dc70f633abb2a0759d612049a61aa7f4be5468f6ee917625b3fab934181ab54
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6414

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
  • 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.
  • 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://norin.co.za/XSRYdR1H?utm_term=net+exam+2018+answer+key PDF link annotation
    • https://solyaris.pro/admin/ckfinder/userfiles/files/96720117307.pdfIn PDF document text
    • http://bigcool.net/webroot/img/files/mosajosusexizamavedu.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/162080f91a28c3---18760321622.pdfIn PDF document text
    • http://parkergeneralcontractors.net/userfiles/file/82452340616.pdfIn PDF document text
    • http://dfwsedan.com/nbloom/fckuploads/file/xapowajaga.pdfIn PDF document text
    • https://oksushidelivery.cl/sitio/public/files/file/nekukiniladufumo.pdfIn PDF document text
    • http://fuchs-orthopaedie.de/UserFiles/file/vemidigid.pdfIn PDF document text
    • https://share.linkilike.com/libraries/kcfinder/upload/files/34350878342.pdfIn PDF document text
    • http://poorun.net/userData/ebizro_board/file/59603627257.pdfIn PDF document text
    • http://test.currentaffairsfunda.com/assets/kcfinder/upload/files/taguno.pdfIn PDF document text
    • http://forsheda.se/admin/kcfinder/upload/files/99056466790.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621aa2eaef3b8---jekavadezuzosagufizo.pdfIn PDF document text
    • https://ripedesign.com/app/webroot/files/fckeditor/file/80506548578.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/voleko.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/sl7aefi1jbo6ijjqapoueeoli3/kisasiwugapufuritu.pdfIn PDF document text
    • http://envisystem.com/upload/userfile/files/24800223526.pdfIn PDF document text
    • http://ensky-chemical.com/upload/files/povitedozegoguwoxasosaz.pdfIn PDF document text
    • http://guanzhuli.com/userfiles/file/31821179394.pdfIn PDF document text
    • http://alsace.annuaire-regional.com/ckfinder/userfiles/files/1292697579.pdfIn PDF document text
    • https://ud-hobby.com/images/Upload/file/46889004128.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/16213c88fa8dc4---9937167814.pdfIn PDF document text
    • http://jinistudy.com/_UploadFile/Images/file/lavojerokubigesupidaropin.pdfIn PDF document text
    • http://promerilaclama.com.tr/panel/kcfinder/upload/files/19241466372.pdfIn PDF document text
    • http://www.kirmatas.org.tr/kcfinder/upload/files/88288543133.pdfIn PDF document text
    • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206ff001ba49---84541719183.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161feff7911b98---jiragafiguvowaz.pdfIn PDF document text
    • http://demo755.webbazaar.com/uploads/67495235286.pdfIn PDF document text
    • http://kowel.com/ckfinder/userfiles/files/1647210949.pdfIn PDF document text
    • https://www.kossuth-csepel.hu/inc/kcfinder/upload/files/97447346149.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620dc4fed47b7---48019944024.pdfIn PDF document text
    • http://kolesa.sk/files/87616473218.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 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_off0004b487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B487 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004cba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CBA7 10884 bytes
SHA-256: 210bde5505479759296abd2091ba51f7e9aa87d87a707b347996f001209c9ef7
font_02_sfnt_off0004e50d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E50D 16928 bytes
SHA-256: cbdbf89f59d88737d6a98bedb820b47a196655394d28ef4e1b67599942bdc4cd