Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d637c0391e20b7…

MALICIOUS

PDF

64.2 KB Created: 2021-01-09 20:29:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-27
MD5: 18d437284b6d37c7b5b67a9283e59711 SHA-1: ea067b4772f7f22f72fe0776aa23fdc5dde27a4a SHA-256: c5d637c0391e20b78d33b0398736fa05f942d484abd02553a3098a507818e4d9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/wb?keyword=mod%20apk%20world%20war%202%20offline%20strategy PDF link annotation
    • https://wudizabilizone.weebly.com/uploads/1/3/4/7/134745746/9162971.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/fFjdgci/vofijutekutex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408598/normal_5fb4a2317ec50.pdfIn PDF document text
    • https://fikuvigobe.weebly.com/uploads/1/3/4/5/134582673/dewaribezop-xeraxogevif-vogazevutaluj-pelopegabina.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369920/normal_5f88745cc91a1.pdfIn PDF document text
    • https://cdn.sqhk.co/muzexeragod/icmpVii/zamekuxoperebubifezitewoz.pdfIn PDF document text
    • https://site-1168118.mozfiles.com/files/1168118/knights_inn_near_me_now.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/arcee_transformers_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/face_recognition_android_github_library.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/latin_indirect_statement_translation.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_off0000bf32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF32 5604 bytes
SHA-256: 9e7b29eacbbbb1f8da566cc798233b8ef57262ceb44c0fe14b1a6e7dafbc4441
font_01_sfnt_off0000d284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD284 9832 bytes
SHA-256: 091199e620b760ecd01d32908fee10ad8c06d44291cc50495778e99c0b0cf3fe