Malicious PDF — malware analysis report

Static analysis result for SHA-256 22bc1839f50484b5…

MALICIOUS

PDF

403.9 KB Created: 2022-03-04 07:04:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-03
MD5: d7aaa8c149aa11837fd3e9e00c54f9dd SHA-1: fbabc2a367163b9151af27c3b8b195918e349b00 SHA-256: 22bc1839f50484b5d7b94de9d001e070499925b748628420453d544d58805266
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7309

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://podar.co.za/XSRYdR1H?utm_term=alphabet+coloring+pages+free PDF link annotation
    • https://greenbins.ca/ckfinder/userfiles/files/1654739919.pdfIn PDF document text
    • https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/33c39505819eb69ffc1febcc5b499482/fixivekizoj.pdfIn PDF document text
    • http://mtrendgroup.com/MTrendGroup/uploadfile/fck/file/87526208826.pdfIn PDF document text
    • https://cowik.pl/upload/54915989909.pdfIn PDF document text
    • https://www.coopi.org/admin/assets/js/ckeditor/kcfinder/upload/files/files/vadabix.pdfIn PDF document text
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe27a78473c---jibosa.pdfIn PDF document text
    • http://henghuitong.com/jingkelun/userfiles/files/20220201210408.pdfIn PDF document text
    • http://karthikeyanjayaram.in/userfiles/file/91068617656.pdfIn PDF document text
    • http://juraganbajumurah.com/kcfinder/upload/files/firavodejadebelapenedil.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/efr3c87hnbhn4emttnvg241gi2/44459949986.pdfIn PDF document text
    • https://vkgnassociates.com/dayafter/uploadimages/newsimages/file/10168710415.pdfIn PDF document text
    • https://iringmalaysia.com/ckfinder/userfiles/files/82149523338.pdfIn PDF document text
    • https://www.colfacor.org.ar/administrador_web/kcfinder/upload/files/68930277241.pdfIn PDF document text
    • http://atem.sciara.eu/public/upload/file/22369601138.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161f99562ec122---tirewerupapevaxiz.pdfIn PDF document text
    • http://ha-sine.com/d/files/pabuluvon.pdfIn PDF document text
    • http://bedrucken24.de/userfiles/file/tusibofa.pdfIn PDF document text
    • https://educationindiajournal.org/ckfinder/userfiles/files/88715935199.pdfIn PDF document text
    • https://www.icfost.org/public/kcfinder/upload/files/97627736890.pdfIn PDF document text
    • https://mofrantech.com/userfiles/file/85651164143.pdfIn PDF document text
    • https://www.officinasapori.com/_admin/kcfinder/upload/files/94507134026.pdfIn PDF document text
    • http://www.fairvalesecondary.co.za/kcfinder/upload/files/37704544901.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621606887e220---34817804582.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/majuzos.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_off0005e3c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3C7 10880 bytes
SHA-256: 8b90883c09cb60c7d316414cef668576e32b5fc34f6fe8ccba1f7c6e5b8239a1
font_01_sfnt_off0005fcaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCAF 17432 bytes
SHA-256: ca91f4ddbca1cd28a8a983674ceef50f330dadd9c67d4f7a308ca04fa0bf36ab
font_02_sfnt_off0006299f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6299F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9