Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5dc2825c35725f4…

MALICIOUS

PDF

558.6 KB Created: 2022-03-02 11:45:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: c10a64ed463d2d74cf819bec06117eb1 SHA-1: fb1e166117f9d9dbd7a5fa2248baa2156a3b6b8d SHA-256: b5dc2825c35725f461b1492e0c994bfb879ad4604600cfa2982eb8166259aeae
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3167

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://www.ibbfvhn.org/recursos/kcfinder/upload/files/20950724065.pdf In PDF document text
    • http://www.nstrechy.cz/upload/files/74511672198.pdfIn PDF document text
    • http://intersonik.eu/upload/files/36450775147.pdfIn PDF document text
    • https://happycpdl.com/backend/web/kcfinder/upload/files/palevajiwekewepen.pdfIn PDF document text
    • https://designsdubaiukfashion.com/userfiles/file/51788892803.pdfIn PDF document text
    • http://nellion.ru/upload/files/tibimut.pdfIn PDF document text
    • http://bmfjhjk.friend-match.com/upload/files/tezilagegumoguwagato.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/sidatolutufijija.pdfIn PDF document text
    • http://privatmajo.sk/upload/files/jajatukexobesu.pdfIn PDF document text
    • http://elsped.hu/files/file/senidofufoziterudiraf.pdfIn PDF document text
    • http://bwemfjhjk.friend-match.com/upload/files/18530360948.pdfIn PDF document text
    • http://galettedesrois.hu/userfiles/file/18708754487.pdfIn PDF document text
    • http://www.oloron-ste-marie.fr/Oloron/kcfinder/upload/files/xugaxol.pdfIn PDF document text
    • http://thiennhanduong.com/ckeditor/kcfinder/upload/files/taminotawegagotowogodojup.pdfIn PDF document text
    • http://ogledalata.bg/uploads/pages/files/11357578120.pdfIn PDF document text
    • http://pierrevillers.fr/mairie_files/file/27310576597.pdfIn PDF document text
    • http://naturalwonders.com/uploads/files/desokemibatadegijixux.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620915894a18d---gelitovoxepigafowe.pdfIn PDF document text
    • http://scales-center.com/shop/fck_file/file/derudidixizozavitibel.pdfIn PDF document text
    • https://xlquality.com/userfiles/file/44494763668.pdfIn PDF document text
    • https://doxity.ro/ckfinder/userfiles/files/92475532077.pdfIn PDF document text
    • https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/29782866257.pdfIn PDF document text
    • https://27061010.com/uploads/files/202202101101307162.pdfIn PDF document text
    • http://imaginove.eu/data/Files/fufufamura.pdfIn PDF document text
    • http://theshop24.com/userfiles/file/xunelojuvate.pdfIn PDF document text
    • http://www.tramag.pl/upload/file/12941443482.pdfIn PDF document text
    • http://chi-kara.net/Upload/files/zubupivodixisa.pdfIn PDF document text
    • http://navicom.net.vn/ckeditor/kcfinder/upload/files/3877069310.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=discharge+form+templatePDF link annotation
    • http://omegabg.net/media/ck/files/67245097448.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_off000833d0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000833d0.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000833d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833D0 18516 bytes
SHA-256: 572fdce456066b7ad686725185084b4d31672726a0e51d03abc69d54a9d51850
font_01_sfnt_off0008643b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8643B 10824 bytes
SHA-256: e953532b4080c42930af0142624545607acc6612725a788ad9f7e2110455effa
font_02_sfnt_off00087d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D3F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off0008945a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8945A 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6