Malicious PDF — malware analysis report

Static analysis result for SHA-256 42508dcbfc9839a4…

MALICIOUS

PDF

201.5 KB Created: 2021-10-13 23:01:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 00ebd5901c5b8c3e268fcb10a1215268 SHA-1: 6d6d7ab4361a415b25955ba079d33c1f6576adf4 SHA-256: 42508dcbfc9839a40635e7e329ef5763815512289a184cfc32994fdb77d9ab3b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9819

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://infrive.ru/uplcv?utm_term=nickelback+today+was+your+last+day+lyrics PDF link annotation
    • http://lamay.de/userfiles/file/nolunopavivanejejasesebon.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379e1bf01ac---raxologezololigenaviw.pdfIn PDF document text
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/gtcg5kj5rp3u5sopfrhhsaln3i/guwetapuninesedo.pdfIn PDF document text
    • http://tgroupsrl.com/userfiles/files/84492997597.pdfIn PDF document text
    • http://jjmcp.jp/userfiles/Image/file/misokojixewevozitikazos.pdfIn PDF document text
    • http://oskarmak.com/userfiles/file/1467845538.pdfIn PDF document text
    • http://wmc21.com/ckupload/files/punarabotulekaf.pdfIn PDF document text
    • http://rc-mst.com/mst/_upload/files/22385410567.pdfIn PDF document text
    • https://creteservices.com/FCKeditor/userimages/file/zakaperajemapusowofix.pdfIn PDF document text
    • http://stjconsulting.it/userfiles/files/5860905977.pdfIn PDF document text
    • http://kemenyseprosiklos.hu/upload/file/52245619910.pdfIn PDF document text
    • https://bodymason.com/user_uploads/files/wilofasobemega.pdfIn PDF document text
    • http://studiolorenzino.eu/userfiles/files/zofavazike.pdfIn PDF document text
    • http://okvin.org/userfiles/file/42353378148.pdfIn PDF document text
    • http://bluecreator.biz/ckfinder/userfiles/files/13349519533.pdfIn PDF document text
    • http://zetrade.cz/userfiles/file/bejuliwe.pdfIn PDF document text
    • https://cristalparkhotel.com.ve/ckfinder/userfiles/files/70153741219.pdfIn PDF document text
    • http://accessibilite-salle-eau.com/ckfinder/userfiles/files/83031661590.pdfIn PDF document text
    • http://redeyeldn.com/userfiles/file/58630268907.pdfIn PDF document text
    • http://ministryofrum.com/memlogos/file/sujudasubizekejor.pdfIn PDF document text
    • http://www.oe.com.tw/ezadmin/ckfinder/userfiles/files/3842779149.pdfIn PDF document text
    • http://dataction.org/demo/dataction/media/lukonovufilal.pdfIn PDF document text
    • http://hstairan.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/41668503944.pdfIn PDF document text
    • https://vendax.ro/files/file/96508273967.pdfIn PDF document text
    • https://www.thc.gda.pl/ckfinder/userfiles/files/63676126019.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_off0002a924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A924 10768 bytes
SHA-256: 93b018ed44b5380127725ed385c4037094b81b4e3f37707680fce14ef81dc934
font_01_sfnt_off0002c229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C229 23584 bytes
SHA-256: 593bafc4462d63c4c772113f1b769d6598331791803c6b525f46f8d8ce68c3b6
font_02_sfnt_off0002ff98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF98 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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