Malicious PDF — malware analysis report

Static analysis result for SHA-256 17c8c06b0835425f…

MALICIOUS

PDF

67.8 KB Created: 2021-02-23 21:29:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 96a45db3e7cab4bb916e92bc842bcf57 SHA-1: 1a14ebcb11fa7145989eede4a589430671cd917e SHA-256: 17c8c06b0835425f6c2c8c05e68d140bddee5b23b96dc7465f2af588f36339ec
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://leonvi.ru/wix?keyword=blaze+binder+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410986/normal_60248abc2e46e.pdfIn PDF document text
    • https://cdn.sqhk.co/xovinexesun/iUkidgd/soxulibirexurolidisopivo.pdfIn PDF document text
    • http://fdvsefwfrw.space/menuvatikizenilava7u99p.pdfIn PDF document text
    • https://cdn.sqhk.co/temazajilib/nwq0qgh/arcade_pre_hack_dragon_ball_z.pdfIn PDF document text
    • https://cdn.sqhk.co/rujoremebi/Thihd2y/xedowaxutusuzulukumad.pdfIn PDF document text
    • https://cdn.sqhk.co/posaleren/jhhcjJR/jikaxivudut.pdfIn PDF document text
    • http://semengergel.ru/formule_mathmatique_libreoffice_writerswxkt.pdfIn PDF document text
    • https://cdn.sqhk.co/dutaxato/T6Bjbn9/beatevo_yg_unlimited_diamonds.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485296/normal_602ebdf123c52.pdfIn PDF document text
    • https://cdn.sqhk.co/zugeketinog/hiWuie3/qualitative_risk_analysis_tools_and_techniques_pmp.pdfIn PDF document text
    • https://cdn.sqhk.co/kigimijexap/jhuPLB9/ninja_foodi_tendercrisp_8_quart.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cdfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDFE 5052 bytes
SHA-256: e3c5f4d6bcb57c98aa0a18ee68054c1342f21842e089232afae12f7edbcb3a06
font_01_sfnt_off0000df3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3E 10568 bytes
SHA-256: 1f3df310c71a47f02f9edc8ee2a49ef28cbffc5b72d449f32ae654160a70901d