Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c15ed49c867e0a8…

MALICIOUS

PDF

65.5 KB Created: 2021-02-24 11:37:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3dc83885cfa47899184e5a98471e4a26 SHA-1: 022e3530c35c8958453c7c1003c37cfed95ee641 SHA-256: 6c15ed49c867e0a86b7d982284c9cf0e74b801ec4173fbd75573db12b982eaef
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://seumenha.ru/wix?keyword=crash+course+geometry+proofs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417656/normal_5ff855d4d40b0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469106/normal_5fec82519fa0e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388040/normal_5fe5a85ae2500.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/gjJji1J/ww2_american_fighter_planes_pictures.pdfIn PDF document text
    • https://cdn.sqhk.co/xajevedu/hf2Xabb/48833077956.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487007/normal_5fcc288b8ae82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465024/normal_601f8f5b6c738.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380223/normal_5fee96142086c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466413/normal_603486f1b0178.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418987/normal_600fa5fc4dd7d.pdfIn PDF document text
    • http://fastdonwload.space/nageteralewufi4jz.pdfIn PDF document text
    • http://price-list.moscow/how_to_trade_stocks_in_the_philippinesz3rwc.pdfIn PDF document text
    • http://oneshops.space/28678783733mv4qu.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/ypSWggM/new_shooting_games_2020_gun_games_offline.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/tutapaxi/tazowo.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_off0000c346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC346 5404 bytes
SHA-256: 600bec8b0fc92909d91a448cc9a3afd1141c2e4571e9d98f7e1a0d338086dcc8
font_01_sfnt_off0000d585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD585 10940 bytes
SHA-256: 11328fb2f76ef3237e53e1b27df5913e4713f0c1d57dcc7aeadbe520087341a3