Malicious PDF — malware analysis report

Static analysis result for SHA-256 66fac49da6a58e3e…

MALICIOUS

PDF

237.9 KB Created: 2022-04-25 03:30:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: b3f7c1735649271a11478a421008cb8e SHA-1: 157a16d80f14810daf3a5d47fb78f0ad728cbc85 SHA-256: 66fac49da6a58e3ee4f44d19ec8f38bc636b23814ee7717fc0a49cd54fef6ece
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8308

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://yubit.co.za/XSRYdR1H?utm_term=japanese+verbs+volitional+form PDF link annotation
    • https://safetypadlocks.eu/eurostyl/photos/file/zutimufeponofifaka.pdfIn PDF document text
    • https://www.eclof.am/assets/ckeditor/kcfinder/upload/files/52224574397.pdfIn PDF document text
    • http://airserbia2009.vs.rs/multimedia/file/81633961272.pdfIn PDF document text
    • https://videoeffect.ir/data/file/5240227764.pdfIn PDF document text
    • https://dubibezu.weebly.com/uploads/1/3/1/4/131453247/978f3efb828e.pdfIn PDF document text
    • https://xyoaa.org/sites/default/files/files/6992389726.pdfIn PDF document text
    • http://chocoenglish.com/_UploadFile/Images/file/nuxalixalurovumebowi.pdfIn PDF document text
    • http://beautystyln.jp/uploads_file/files/71886496531.pdfIn PDF document text
    • https://seligebofis.weebly.com/uploads/1/4/1/3/141399403/7737863.pdfIn PDF document text
    • http://demo755.webbazaar.com/uploads/68553886354.pdfIn PDF document text
    • http://dralituncer.net/userfiles/file/37365401219.pdfIn PDF document text
    • https://xotubowewetiner.weebly.com/uploads/1/3/2/6/132696149/pajumebuwediz.pdfIn PDF document text
    • https://basse-indre.kendalch.com/upload/files/16014624235.pdfIn PDF document text
    • http://pronobile.com/catalog/file/kopugotewafamumej.pdfIn PDF document text
    • https://zooiguana.pl/app/webroot/media/files/losekixevudutuvagage.pdfIn PDF document text
    • http://michigan.easydefensivedriving.net/CheapNEasyTrafficSchool/pa/trainstation/uploads/image/file/kolitebasek.pdfIn PDF document text
    • http://qazaqbanki.kz/data/content/files/42005734601.pdfIn PDF document text
    • https://wutuzorul.weebly.com/uploads/1/3/5/9/135963099/doridaguribumu.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16265239893518---nusarisedeloz.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/1624ab0240f6a6---zevenanazosavurafu.pdfIn PDF document text
    • http://only-svet.ru/upload/files/60641238998.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0003481d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003481d.bin)

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003481d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3481D 18888 bytes
SHA-256: 38ae4c4643ab2c31d075d7bd854ca74ffd7afe9810306856a97bd5652975a6b6
font_01_sfnt_off00037858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37858 10716 bytes
SHA-256: 15c3de787b04eeea2bffefdae65c2161ad8b88c595acc353511b4b3fb17dda27
font_02_sfnt_off000390ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x390BA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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