Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc07c71a60fc703…

MALICIOUS

PDF

65.9 KB Created: 2020-12-18 05:46:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: cf7c0d8d0abe54f46d7b41587627eca7 SHA-1: 75671b8eacfcc7f188503fd1c23408ccb050529f SHA-256: 1dc07c71a60fc7032edec998fe173f98af54fc76dfb35e60c5dd015c5313f47e
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://trafffi.ru/wb?keyword=adobe%20illustrator%20draw%20pro%20apk%20free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366655/normal_5f8754071a669.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458829/normal_5fd1f43d978b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500446/normal_5fcce0d9d29f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373768/normal_5fcc10422a0d2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383678/normal_5fc4126cc92fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389823/normal_5f8dc90119f0f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9d7c164-1e97-4f7d-b6b5-3bef984e1875/vipuwujutazozefis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3de81da-b711-4de8-bf95-494061f2cc72/fiverr_sinhala.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c01a463-9ce4-48ac-8d61-cb5fee44434b/hazbin_hotel_rule_34.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cadd6517-9771-4fdb-a6c4-7b9cbe5ef4a5/96811870564.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/118e0e84-f7e2-4c6c-a725-9b80927c401c/30559954757.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce08ca41ec4a2cc0e05485/t/5fcf26e905f6f2780753eaf6/1607411434598/city_block_purifying_clinique_how_to_use.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_off0000c3a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A8 5320 bytes
SHA-256: 2ab27bf6aa68a0ae407e07e68d656f81a01c7b042fbe80bf7d2db4fe4aff723b
font_01_sfnt_off0000d5da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5DA 10908 bytes
SHA-256: 41583f08d6e479baa8f891796180d626de620b93963a9b3365e964bb193edc2d