Malicious PDF — malware analysis report

Static analysis result for SHA-256 9026225215e311c8…

MALICIOUS

PDF

66.8 KB Created: 2021-02-08 22:48:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2eaa617d4673949bd0e854e25516eac5 SHA-1: 735cb75ce0e44175e59043f4be8016be498a9206 SHA-256: 9026225215e311c8b3853ac56be9f2368746b4d958714f53281b1dda8f80d03b
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://bologen.ru/wb?keyword=flagstaff%20arizona%20weather%20report PDF link annotation
    • http://powerpoint4you.ru/juzenukomixe5cwl0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422144/normal_601042d0206f4.pdfIn PDF document text
    • https://cdn.sqhk.co/nujidegowupi/jcslghl/stickman_legends_ninja_warrior_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420939/normal_5ff2485983225.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459337/normal_600e67db7a706.pdfIn PDF document text
    • https://cdn.sqhk.co/bowevuva/r8yrehd/fixasebubuzezosejula.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457881/normal_6000f322763ed.pdfIn PDF document text
    • https://cdn.sqhk.co/jofijoju/jgjeicr/bogirilalumiwaginupifosol.pdfIn PDF document text
    • https://cdn.sqhk.co/nejibija/hciajb3/6981567009.pdfIn PDF document text
    • https://cdn.sqhk.co/bubiwalifeda/WgdgiQz/hidden_valley_ranch_potatoes_in_instant_pot.pdfIn PDF document text
    • https://cdn.sqhk.co/wazafanez/hajfijn/96923186991.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/jebokizez/potin.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/ielts_reading_test_answer_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/galajebijejo.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/sufotadusapikemokorirab.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_off0000c7c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C5 5260 bytes
SHA-256: 4af30ae6a805a7631d830a9a5f129ac6b7a902eae8c921982d637b6e11c91b99
font_01_sfnt_off0000d9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C6 10256 bytes
SHA-256: 847cfa9399a1b21c32d28c1665c668c90b410fe2f92e20f8274b3e5e518113bc