Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee4509420f76ada…

MALICIOUS

PDF

67.6 KB Created: 2021-02-26 16:01:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f3486e4d127932919aa67e582b967cdb SHA-1: 0e5aa5118e9bd79a52e68c52be096c9fde1bd5d1 SHA-256: bee4509420f76adad5a7ffb450c52f5e2bf489ecbfb53217049870499fa8f92c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/award?keyword=the+redemption+of+henry+myers+movie PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4466166/normal_6018ddb848738.pdfIn PDF document text
    • https://cdn.sqhk.co/kelopifagisu/ggjbha1/94151358058.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499651/normal_6003eded7ba9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499995/normal_60338df37e6a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402951/normal_5fea3e12ce300.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374181/normal_5fd9dfd8cebd7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368230/normal_5fc8e567ebc14.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423700/normal_5fc947fd953c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387933/normal_5ff5427ea31eb.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/gedimuta/bumisaratuga.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/37361445022.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/android_os_versions_market_share_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/80567053239.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/neumonia_viral_pediatria_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/wowuxavijasobijuweb.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/google_docs_form.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/28364204812.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/bryant_furnace_parts_manual_395cav.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_off0000ce9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE9E 5148 bytes
SHA-256: c5820decc7d431fd759c02f5584b1a396cb0ecdd9898067716d408a2f713ad69
font_01_sfnt_off0000e006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE006 9740 bytes
SHA-256: b499a30cb5931eb88503561a55859224ca80de4d5cca8379d857afaf9ac2b425