Malicious PDF — malware analysis report

Static analysis result for SHA-256 8477306d0ae22440…

MALICIOUS

PDF

96.6 KB Created: 2020-11-11 00:58:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: 1e7d398a3af5947a96e4a57363a0317e SHA-1: 0030d23f41539b7431991b1e7b7703086d7b1bed SHA-256: 8477306d0ae22440e8f71e78cdbf3de446777deb0aa1660aa77e546b2780416d
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • 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.
  • Travel-support phone-number stuffing scam high SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://s3.amazonaws.com/vavapekadoliti/64843331149.pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4467019/normal_5fa2fdd9630fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365619/normal_5f87026616959.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/how_to_get_rid_of_activate_windows_watermark_windows_8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371543/normal_5f8bd686d2670.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401558/normal_5f92fde34b445.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/74504965095.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423136/normal_5f9c7bdb3a4d5.pdfIn PDF document text
    • https://traffmen.ru/wb?keyword=world%20conqueror%204%20redeem%20codesIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00013f92.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00013f92.bin)
    • https://uploads.strikinglycdn.com/files/b973ec2e-c705-4bdc-ac0b-cb3fd2d135fb/51805548146.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf04318b-b2eb-4535-94cb-c86052e55702/fafulawegav.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 extracted file (font_00_sfnt_off00013f92.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013f92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F92 5104 bytes
SHA-256: b6786241d2882fc2b5b5871c8bc815996cd73e7cf46d8719cf741e15a2f525a2
font_01_sfnt_off000150e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150E6 10940 bytes
SHA-256: 8b63ea56ba7bdda09682ac3b1349754d41d6ab540f12624fdf47a640cda92428