Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dca7e981c34bd89…

MALICIOUS

PDF

316.2 KB Created: 2022-01-14 00:07:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: b2f0109d0eea8ef85f5606db4b140876 SHA-1: 7fd3ec782be09ec2456e2303b171b6fcce10cd00 SHA-256: 1dca7e981c34bd89586c9a8faae6df39f17d22716b2f0cd571034b8d6b2d058f
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8991

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://designclarf.it/file/gejuzu.pdf In PDF document text
    • http://vekosgroup.ru/userfiles/file/bafekumixo.pdfIn PDF document text
    • https://normec-cm.com/ckfinder/userfiles/files/rakufuxe.pdfIn PDF document text
    • http://lordwood.ru/images/file/lidokaz.pdfIn PDF document text
    • http://smartbazar.online/app/webroot/upload/files/58083480091.pdfIn PDF document text
    • http://nfraccon.org/userfiles/file/61506715201.pdfIn PDF document text
    • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/fac0aab9d3c3d2f403b309e6ccbe7078/gitara.pdfIn PDF document text
    • http://axiomestates.com/userfiles/file/gunidusototokasurigove.pdfIn PDF document text
    • http://fence-alarm.com/userfiles/files/pegor.pdfIn PDF document text
    • http://dwornawodzie.pl/userfiles/file/gademusukuber.pdfIn PDF document text
    • http://scuderia512.com/js/upload/files/3197140122.pdfIn PDF document text
    • https://parfumzone.ro/files/file/87964329401.pdfIn PDF document text
    • http://mazurubezpieczenia.pl/zdjecia/fck/file/12742385548.pdfIn PDF document text
    • https://enerjimakine.com/tsrm1/img/userfiles/file/76497967117.pdfIn PDF document text
    • http://oecschool.com/userfiles/file/rigotawalumo.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/7xhmvLXWVJc/uplcv?utm_term=2nd+grade+sight+words+list+pdfPDF link annotation
    • 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_off0004852f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4852F 17724 bytes
SHA-256: 2232507ae5524105f0a6a983145646817491ea3c9827c1fb807a165b9bb47f16
font_01_sfnt_off0004b2f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B2F0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0004c994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C994 10888 bytes
SHA-256: dc1df474e1ab4965264a03f4aa6a979de267fc3af7decb4f762c1501b94962c8