Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddac373351e6995…

MALICIOUS

PDF

331.1 KB Created: 2022-03-18 14:11:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 15733ae51542681a882fefe637b1339a SHA-1: 38f8b43ad1c02af9a718a2539171a94f5d900e40 SHA-256: 3ddac373351e6995c7bf6c627489f44e14b048cca5bb9fb9f9ecc5aec44bfffe
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9486

Heuristics 5

  • 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.
  • 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=dickensheet+dump+hours PDF link annotation
    • http://packagingandfoodmachinary.com/userfiles/file/puzafewawogofaxijisisosi.pdfIn PDF document text
    • http://pneuservischrudim.cz/files/file/42479240902.pdfIn PDF document text
    • http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/fapodu.pdfIn PDF document text
    • http://marleenjansen.nl/images/uploadfiles/98424849203.pdfIn PDF document text
    • http://rayocazar.com/images/elfinder-1.1/files/file/1996631084.pdfIn PDF document text
    • http://igabana.com/upfolder/e/files/20220211205543.pdfIn PDF document text
    • http://studiolaviano.it/userfiles/files/tizuluzagisedamazivu.pdfIn PDF document text
    • http://divodizain.ru/ckfinder/userfiles/files/fitukosavageruf.pdfIn PDF document text
    • http://medlabtests.com/kcfinder/upload/files/51482804708.pdfIn PDF document text
    • http://isiknakliyatmasko.com/img/editor/image/file/35141086083.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620945835d478---tedaruridamobapanowebas.pdfIn PDF document text
    • https://marblobathware.com/app/webroot/img/files/77886671494.pdfIn PDF document text
    • http://berbun.com/user_img/file/bebefodidojok.pdfIn PDF document text
    • https://bulkleynechako.gocascadia.com/images/cms/file/tezixigojodaxutenudezisa.pdfIn PDF document text
    • http://www.chinnanaidoo.org.za/kcfinder/upload/files/84238554087.pdfIn PDF document text
    • http://www.eau-msu.ru/ckfinder/userfiles/files/fuxozevazipizagikamowonon.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/2ega63hbfau722757p8hr55s65/joludexubibotikusabube.pdfIn PDF document text
    • http://rosesrealtyhomes.com/userfiles/files/mironubiwaxuzan.pdfIn PDF document text
    • http://sedistec.de/img/uploads/files/zaxuzib.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_off0004bf18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF18 18216 bytes
SHA-256: 9adfdbe7843f9edd946ce597e8a13dfeefd392fca353b1e5a682efe4f89a016e
font_01_sfnt_off0004eeec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EEEC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005060c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5060C 10764 bytes
SHA-256: 7bc1aa9bfd896974752e627f6169f4a699ae26feb1f7f79e83548004785f9b79

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