Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad0ed061fc83204…

MALICIOUS

PDF

93.7 KB Created: 2020-11-22 17:45:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: febeffcbb2b8d4b0d41078106c28657d SHA-1: 6f611967bd2e3e7c0ae18265180c6dfd7479ed13 SHA-256: 9ad0ed061fc83204917372a94508efb40fa0f1cc444ca96fcb5b65f392dbd740
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9821

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
  • 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.
  • 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://cdn-cms.f-static.net/uploads/4381085/normal_5faa7c75a2edb.pdf In PDF document text
    • https://s3.amazonaws.com/dixaleko/jubatudupusob.pdfIn PDF document text
    • https://trafftec.ru/123?utm_term=life+cycle+of+a+star+worksheet+answers+section+4PDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0001317a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0001317a.bin)
    • https://uploads.strikinglycdn.com/files/47570753-c60c-4f3f-993e-170bc0da5b76/letter_to_teacher_about_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5cfab07-c04e-451b-ae16-8f05a4d2e878/21721118986.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7f3b60c-5ac5-4808-8f90-78ff52d80a23/gixufafefekopafezak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3bf0b48-fa2c-43cf-b7a7-48ae6985e377/sebobi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b2769fc-314f-455c-9640-93adf90cd855/brief_principles_of_macroeconomics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6272d678-99e6-4852-9d87-93d7b15a4479/97618660010.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_off0001317a.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001317a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1317A 5256 bytes
SHA-256: 3d7dc5e68c177a52c91d58002375ed36efa7e1e7d7eb060f5cbabea30e110447
font_01_sfnt_off0001437d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1437D 11368 bytes
SHA-256: e2aad2ce3c0893414d9852788fc4d818d6adb42efe82d8950454a9d5b4bab3ad