Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5633864f5b4d03…

MALICIOUS

PDF

37.4 KB Created: 2020-11-03 05:09:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-11
MD5: 3cb12b3c5148e593a89b796e04e7e708 SHA-1: 9580ae6ec9f7ecdb903d97484b7114cacba1fcdf SHA-256: 0d5633864f5b4d03918a97357701819d68b3da84deecb1c832334cd7e352e117
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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=cleveland%20county%20schools%20nc%20jobs In PDF document text
    • https://s3.amazonaws.com/gupuso/xewujowefanabesebinega.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/jizijalefabosajisixuvutok.pdfIn PDF document text
    • https://guxolufesa.weebly.com/uploads/1/3/4/4/134468064/7789007.pdfIn PDF document text
    • https://mepagalupotope.weebly.com/uploads/1/3/4/2/134265457/bemidi.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/sinewixejel.pdfIn PDF document text
    • https://vamugibamapiju.weebly.com/uploads/1/3/4/5/134588186/3810515.pdfIn PDF document text
    • https://velabusodogir.weebly.com/uploads/1/3/1/8/131858366/1303c161b490c5e.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/nemonujosoj.pdfIn PDF document text
    • https://jutebipofan.weebly.com/uploads/1/3/4/3/134334370/a8999.pdfIn PDF document text
    • https://raxabebawozovi.weebly.com/uploads/1/3/4/3/134311701/6218334.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004588.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004588.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00007b25.bin)
    • 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_off00004588.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4588 5168 bytes
SHA-256: c10c66e2a9ac3c608776f2b0375a84af38efb13feedf10df1f7f8223b7c94afb
font_01_sfnt_off0000572c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x572C 10540 bytes
SHA-256: d2040997a7f52875040fa6abf864a7d25bc6083d7aa135a15f310d45cf36757d
font_02_sfnt_off00007b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B25 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361