Malicious PDF — malware analysis report

Static analysis result for SHA-256 f970876e9fecf47c…

MALICIOUS

PDF

68.1 KB Created: 2021-02-19 18:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 423c7ed2c223e95217c18f9ff04e7bcd SHA-1: 545631a64f35406d6b18d52fb450c480396b6325 SHA-256: f970876e9fecf47c541376f618bad0c300d240fbfa5e993c590c119d14132ca7
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://jottigo.ru/wb?keyword=char-broil%20flex%20arm%20grill%20light PDF link annotation
    • https://cdn.sqhk.co/jefulajidi/juHBuic/instagram_search_user.pdfIn PDF document text
    • https://cdn.sqhk.co/fabadipub/ibhdoOB/44184448742.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414153/normal_5fcb2f22afcd1.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/Gighdhf/turbo_driving_racing_3d_apk_mod_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/jaguwubax/fietnjf/parentvue_login_pwcs.pdfIn PDF document text
    • https://cdn.sqhk.co/raxavetaletu/e25NMOT/live_football_scores_bbc_premier_league.pdfIn PDF document text
    • http://witexodegimo.iblogger.org/accident_reporting_ontario.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/wupixufekijax/anglican_churchwardens_report.pdfIn PDF document text
    • http://bologipegokofi.epizy.com/arya_full_movie_telugu.pdfIn PDF document text
    • http://nuxidowu.epizy.com/65707668300.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/edward_jones_app_for_android_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/15528244957.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/97596521725.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/nomibalurovelijilo.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/xomesuligu.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_off0000cdd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDD6 5148 bytes
SHA-256: b0d1f9644b8f9da0549a850460044f2afc4ea4c77a04959c9e7a28edf31d7c1f
font_01_sfnt_off0000df3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3B 10916 bytes
SHA-256: 6b9c3764fdbcfe835a1e4fd95b9a98b5f882d66e74f811a176fb210746b0ab0a