Malicious PDF — malware analysis report

Static analysis result for SHA-256 464d4a75d8781b17…

MALICIOUS

PDF

72.9 KB Created: 2021-02-22 14:02:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2c4b13b7e9fa494af623d58776a534b1 SHA-1: 61543b431e849a168d0ebff90c184e0b07c9c9a0 SHA-256: 464d4a75d8781b1796db1ce2a8ed9f0c83c15f3569208d4ef07cf264319ab4e3
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/123?utm_term=setting+citizen+eco+drive+chronograph PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420250/normal_6010a8a20381c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490523/normal_5ff6612380d3b.pdfIn PDF document text
    • https://mafizawejibon.weebly.com/uploads/1/3/1/3/131383772/filefusajiri.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/ibghWgc/istation_app_logo.pdfIn PDF document text
    • https://cdn.sqhk.co/zonakagud/hjyWKji/video_chase_tag_championship_final.pdfIn PDF document text
    • https://cdn.sqhk.co/poxirowo/hTIR9hG/33324863361.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453908/normal_5ff5ce9b29f78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469617/normal_5fe235e1d0e4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450038/normal_6020a1ed615e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474218/normal_6003a71fb858a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404520/normal_601a9f437e176.pdfIn PDF document text
    • https://cdn.sqhk.co/gebitasixa/jbgi1XY/xtreme_tree_team_inc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425921/normal_5fc5ebc051578.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485172/normal_5fef35bea3148.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475719/normal_60164a5fb3513.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sapirilogive.epizy.com/58395155933.pdfIn PDF document text
    • http://vudetelutineb.rf.gd/chemical_properties_of_calcium_carbonate.pdfIn PDF document text
    • http://muzasedek.epizy.com/95588714874.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_off0000e0eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0EB 5336 bytes
SHA-256: 7f23282d7d7899089ebc0675133c2094580d9c53e6e39443302b17e008aca661
font_01_sfnt_off0000f320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF320 10388 bytes
SHA-256: f253a68e046045ceb8fe85db4feb7d329c5eeea2d8f6575f5cc7d796199b672a