Malicious PDF — malware analysis report

Static analysis result for SHA-256 19f1bd48b3eff77e…

MALICIOUS

PDF

69.9 KB Created: 2020-11-30 14:51:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-16
MD5: 8ec13ccb778622a6188499cf2191a35e SHA-1: 0e7ae922c9aab6528e17f4d8b243c4805fcc0d23 SHA-256: 19f1bd48b3eff77e136f1bf02122355612af4d5e77d45169012efdec99c6add0
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ggtraff.ru/wb?keyword=microeconomics%20practice%20questions%20and%20answers In PDF document text
    • https://cdn-cms.f-static.net/uploads/4391909/normal_5f9246ab22cbb.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/nosekupemotupamifowegu.pdfIn PDF document text
    • https://s3.amazonaws.com/moxekibupuru/pokemon_go_joystick_apk_ios.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379973/normal_5f929739cb3f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375889/normal_5f9b1fed4cbce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496014/normal_5fb8d57f3a88c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426823/normal_5f9a47788917d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447087/normal_5faf03503f8ac.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/vsam1040_ca_phe_sang.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375207/normal_5fa5400154d44.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d3dc.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d3dc.bin)
    • https://uploads.strikinglycdn.com/files/05e8cd82-8b8c-4991-a0b8-565b08e53ba6/fogejifapavonebuga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4713ff9f-6d99-43a2-8436-ec95dc3a605f/congressional_redistricting_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0eac55bcb0228a2828fa5/t/5fc177592dd96f591826af5f/1606514523070/java_the_complete_reference.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31a6911c-6517-490d-acfd-e1755d8654b3/coconut_carbon_water_filters.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_off0000d3dc.bin)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3DC 5408 bytes
SHA-256: 483cbb7ba2c1be53686ac2441a03c08e8d5eb829a740177bdea3df960f99ba2d
font_01_sfnt_off0000e641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE641 10740 bytes
SHA-256: 48f8765ad9070a481658dd8962b7e19a77c0c2d9764264ab69dd0b7b2f4f6263

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