Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc3150fbf2c02a2…

MALICIOUS

PDF

66.1 KB Created: 2021-02-09 23:41:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 6b3e85d1e7f628110fb124ab6e54e26c SHA-1: 6da8dff86958523bf6436c349531b76bb37fa046 SHA-256: 1dc3150fbf2c02a206c91f1f95783f513400b23d24d199421e541a042d201c3d
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://yafferge.ru/wb?keyword=antony%20and%20cleopatra%20quiz%20with%20answers In PDF document text
    • https://tiguziriwisil.weebly.com/uploads/1/3/1/0/131071210/jonoba-sagefebujujefag-lesizibopoben-xowigo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445130/normal_5fe4f55c4fda0.pdfIn PDF document text
    • https://zadopelujon.weebly.com/uploads/1/3/4/8/134884154/175ef7c275c3768.pdfIn PDF document text
    • https://sidunijutama.weebly.com/uploads/1/3/1/1/131163786/jubajapovigog.pdfIn PDF document text
    • https://romuxejis.weebly.com/uploads/1/3/4/8/134887308/subafubu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407983/normal_5ffbd40a71098.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424361/normal_5fc5d9e557781.pdfIn PDF document text
    • https://tunuzari.weebly.com/uploads/1/3/4/3/134316111/davogin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491168/normal_601f3c4587093.pdfIn PDF document text
    • https://cdn.sqhk.co/wepugozotap/jhifVjh/nixajasinavuxif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469641/normal_601b154c106ce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lusunumef.rf.gd/stock_inventory_free_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/bibizosapakuva.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/java_tutorial_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/24702298374.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/pefukabunalet.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC456 5520 bytes
SHA-256: de2b31c6fb388912dad643c7e6a7e8acf9023c1e000a25da54a8e18a87c0e709
font_01_sfnt_off0000d734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD734 10832 bytes
SHA-256: 7a2370114901499c8433def5117d834326dc12c90cf383bc5b944e366735deac