Malicious PDF — malware analysis report

Static analysis result for SHA-256 445d0823e58bfce4…

MALICIOUS

PDF

83.2 KB Created: 2021-01-16 22:54:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-11
MD5: 9e84c63ffdc87135d312e2a37304e906 SHA-1: 68b5e704827739ac081b91995599d892565f1e7f SHA-256: 445d0823e58bfce458674169bebf2237bba454ae6bd17b85d66c04d736c65d78
136 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
  • 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://trafftec.ru/wb?keyword=bus%20simulator%20ultimate%20skin%20myanmar PDF link annotation
    • https://site-1179000.mozfiles.com/files/1179000/xinuwefikujozazumage.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/fjg8F9q/22107220820.pdfIn PDF document text
    • https://site-1178489.mozfiles.com/files/1178489/change_color_of_bold_text_html.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450036/normal_5fbced370327c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480736/normal_5fbec7a23c355.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417999/normal_5fa00e918a839.pdfIn PDF document text
    • https://site-1176040.mozfiles.com/files/1176040/top_cheap_android_phones_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401714/normal_5fbf2744a2f66.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/ihFzhak/21376529725.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367281/normal_5fc4aaba3ddcc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488332/normal_5ff5890f0d5e9.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/mavixu/vosibizexawa.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/k_letter_words_images.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
    • http://scripts.sil.orgIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f013.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF013 5044 bytes
SHA-256: fb4b7e322dea3c6cb70803170bf93022c154abcab637150b33d661c679736011
font_01_sfnt_off00010128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10128 10664 bytes
SHA-256: 4ea674015a82966d98bb7d849443c1471431289b59e01f39d670f72f613b2cb0
font_02_sfnt_off000125ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125EA 8608 bytes
SHA-256: 484a36213866b3082d415875d5d01db45496298bbc79432fe5328f95577d8ec4

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