Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc7fdd911f1eccc…

MALICIOUS

PDF

250.1 KB Created: 2022-01-11 13:51:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 21f4ed9b1ebafe941995efe933d1cad2 SHA-1: e50f73f07c2cbf4332364f251155a2300b775dc4 SHA-256: 3bc7fdd911f1eccc7fcf4e21f6495f4049832a93dd0f337851ec895b17a1b9fd
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7279

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://infrive.ru/uplcv?utm_term=mon+bechara+song++pagalworld In PDF document text
    • http://ggbris.com/slbdavbatala/userfiles/file/bedexotemakosediwusaguzol.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cbd6c32a45a---28174828643.pdfIn PDF document text
    • http://sumisaedu.com/FileData/ckfinder/files/20211223_519B242191DD91D8.pdfIn PDF document text
    • http://smartmoverecords.com/india/images/file/19635246484.pdfIn PDF document text
    • http://moscowfashion.net/content/xuploadimages/file/18908008543.pdfIn PDF document text
    • http://aloisiquadri.it/userfiles/files/22063032203.pdfIn PDF document text
    • http://itagqatar.com/itag/file/files/64542794976.pdfIn PDF document text
    • https://deesudcoolingtower.com/userfiles/file/88870224240.pdfIn PDF document text
    • http://firmykominkowe.pl/Obrazki/edytor/file/66923074387.pdfIn PDF document text
    • http://dochoiotovn.com/uploads/userfiles/file/kefezilugomafolarunu.pdfIn PDF document text
    • http://laclonghotel.vn/upload/files/xisovazonesalofoz.pdfIn PDF document text
    • https://doosradashak.in/ci/userfiles/files/50435512381.pdfIn PDF document text
    • http://s-privod.ru/userfiles/file/jipuworimomuvod.pdfIn PDF document text
    • http://www.jssmiec.com/themes/js/kcfinder/upload/files/45245924535.pdfIn PDF document text
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16191979bc89ef---30139108107.pdfIn PDF document text
    • http://darec.sk/files/files/pezedamimut.pdfIn PDF document text
    • https://autosaloncenter.com/uploads/files/wevagutux.pdfIn PDF document text
    • https://yodobashi-church.com/mixifaridivedadumovu.pdfIn PDF document text
    • https://o2opr.co/userfiles/files/gibuvabe.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c7d014ae39---98788980340.pdfIn PDF document text
    • http://razzledazzleevents.in/userfiles/file/zanof.pdfIn PDF document text
    • http://bollnas.boj.se/uploads/userfiles/files/78648683589.pdfIn PDF document text
    • https://ww150001.linebot.net/upfile/files/20210930175714.pdfIn PDF document text
    • https://netshopnepal.com/userfiles/file/nusipizitupipibojiwowora.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_off00037b3a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00037b3a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00037b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37B3A 18308 bytes
SHA-256: 2485dfaa1026cf066ab453fc573a1da1dbc8aa0a0d781893c1e9f0f6ac46e44e
font_01_sfnt_off0003aa41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AA41 10820 bytes
SHA-256: 7a4f4f86f951d1b94bc0bf2b1b2f1eb157ef92ec3b2d6b10e16004e2ac773b54
font_02_sfnt_off0003c2c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C2C7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336