Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c03d864b276021e…

MALICIOUS

PDF

72.5 KB Created: 2021-02-07 20:10:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 52b16ba67e4efce25817512f10e54a0b SHA-1: 887b186ed0bbe43304a83801994d9d964c0e01ab SHA-256: 6c03d864b276021e73ecf161bce9482c7331230d44198af790f27f9f6ef0690a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/123?utm_term=el+capitan+campground+cabins PDF link annotation
    • https://cdn.sqhk.co/dewavasese/gcigibz/80234284481.pdfIn PDF document text
    • https://cdn.sqhk.co/zupuguvawaj/cThhKhd/1602891194.pdfIn PDF document text
    • http://taptopbot.com/download_super_car_robot_mod_apkfqmmj.pdfIn PDF document text
    • http://copyrightsupportforlnstagram.com/mobibunihmro2.pdfIn PDF document text
    • https://cdn.sqhk.co/dopuwene/nohjq6E/dejewavugubapofosugo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470220/normal_6010fedcd7f42.pdfIn PDF document text
    • http://startask.ru/62665648242ojv6n.pdfIn PDF document text
    • https://cdn.sqhk.co/jibibezeva/wChf3Cf/dajuriwab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378830/normal_5fdf4ee584954.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384459/normal_5ff007cb35dd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381971/normal_600e61b86e5a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462038/normal_5ff637413927f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367667/normal_60079986f1483.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467612/normal_6006efd0809fc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vukenorap.epizy.com/ca_foundation_books_2019_free.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_off0000dc38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC38 5492 bytes
SHA-256: 009de9ac90211cf869a4a8e5a58b1f48c7238cd5fa75cb2ab5b1e5e23a727aaa
font_01_sfnt_off0000eec7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC7 11272 bytes
SHA-256: 1c8725d98413218cfce4f6504b6ff150f90044661488e60c1e169f7056c03ca4