Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d891d7bee609678…

MALICIOUS

PDF

75.5 KB Created: 2021-09-14 00:35:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 790d2ba41d7a6d3e0f3acde5d866074b SHA-1: adef794a3a3b124c2a2d5fbf52b21ef87bbf8f09 SHA-256: 5d891d7bee6096783647e619bdbd1ecb01f889973715dcd9fe12ca034f932576
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cructi.ru/uplcv?utm_term=can+i+retrieve+deleted+videos+from+my+phone PDF link annotation
    • https://lorus.rs/files/dubagekemilas.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613953f9aa328---90467195812.pdfIn PDF document text
    • http://unsersohn.ch/images/file/85582710433.pdfIn PDF document text
    • http://1-sanya.com/blog_images/blog_/file/28024282852.pdfIn PDF document text
    • https://huangs.tw/uploads/files/202109131732355952.pdfIn PDF document text
    • https://lazeo.nl/userfiles/file/70555955544.pdfIn PDF document text
    • http://peneleos.pl/userfiles/file/59917637680.pdfIn PDF document text
    • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/s9mp8buohc4rluh06cb9p04et4/vedefubuvuwedolizerageru.pdfIn PDF document text
    • http://mictrogiang.com/userfiles/files/28687676481.pdfIn PDF document text
    • http://influences-vegetales.eu/assets/Image/files/50905828589.pdfIn PDF document text
    • http://madonnina.info/userfiles/files/66613877998.pdfIn PDF document text
    • https://hotelharmika.com/assets/userfiles/files/47137368159.pdfIn PDF document text
    • http://www.slappedtogether.com/editoruploadfiles/file/zimuko.pdfIn PDF document text
    • http://tourgrodno.by/images/content/file/kefipejuzomilipoxowowu.pdfIn PDF document text
    • http://xn--80aatg4aaaddkhfhbf3evf.xn--p1ai/ckfinder/userfiles/files/51430611239.pdfIn PDF document text
    • https://nakatarikaszel.pl/app/webroot/userfiles/file/34171086664.pdfIn PDF document text
    • http://sgd42.ru/userfiles/file/340464995.pdfIn PDF document text
    • http://chothuexeninhbinh.net/data/dulieu/files/kezalusuxerunonenilajeze.pdfIn PDF document text
    • https://emenu.hu/editor_up/51555354408.pdfIn PDF document text
    • http://marklaliberte.com/fckupload/file/xukojinuforituzowex.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_off0000c1ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1FF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000da11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA11 17708 bytes
SHA-256: 1514801e62fc0e94beaf0b620139dab9b9f425c76cd283053545d74fd08cda9e
font_02_sfnt_off0001074f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1074F 10972 bytes
SHA-256: a0f9705d61b4b53cae6bdd7a96345fa4a3cc92b5ae29085c22db11394c29ea7c