Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e405c6f3ff1aef2…

MALICIOUS

PDF

69.9 KB Created: 2021-02-23 23:47:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 025ada59b51edc278adfc57076592ac8 SHA-1: eb4565f8750985985392b05123867b1447978e1b SHA-256: 2e405c6f3ff1aef2bf27d643551df7ba7033f44c5e0b9828c20a13d557d29b56
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/wb?keyword=wd%20tv%20media%20player%20add%20apps PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383146/normal_5fcd0bc16a543.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401972/normal_5ff2761423d12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384299/normal_5fceaf3749951.pdfIn PDF document text
    • http://maykistore.ru/android_wear_2._0_watch_face_tutorialglvpn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375514/normal_6024061ab8b89.pdfIn PDF document text
    • https://cdn.sqhk.co/sisadenev/ihgZifU/dead_mind_mod_apk.pdfIn PDF document text
    • http://apeech.ru/gomojaboripasetetobi481v3.pdfIn PDF document text
    • https://cdn.sqhk.co/pikuworano/ibvhfFA/nasomeruzuwopidipapeku.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409236/normal_5fe4365acf47b.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/jjnfijX/tone_generator_application.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/sefiwegegagu/a_level_english_literature_book.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/vonimobalagiz.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/78504739134.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/84126323117.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/merarul.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_off0000d586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD586 5280 bytes
SHA-256: 920e82cf51f3d22cafe1506dd3283cd56740c9082d2d3699a7a93084a4687514
font_01_sfnt_off0000e772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE772 10440 bytes
SHA-256: fc8b0e34558e485da3e073c0859658b67c35d5637d00aefce990d0b439292c2b