Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ad9e73dd95b59db…

MALICIOUS

PDF

70.2 KB Created: 2021-03-02 11:54:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6f2a83ca5396e68c975b0cf82e475a2a SHA-1: 4eb556e97864bbcf0053e2f68d7ae713eca8b0a3 SHA-256: 7ad9e73dd95b59dbabc01e294a285361f5fd3fbd2523895d6dd92dc08dcc1019
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://pelibifir.ru/wix?keyword=simcity+buildit+cheats+without+survey PDF link annotation
    • https://cdn.sqhk.co/buvaboda/jbQjhKm/best_apple_watch_6_screen_protector.pdfIn PDF document text
    • http://nesebonuvobeju.getenjoyment.net/the_elements_of_moral_philosophy_8th_edition.pdfIn PDF document text
    • http://sadovik.me/nudopasizilif833s3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443576/normal_60327977c127e.pdfIn PDF document text
    • https://cdn.sqhk.co/nusatabi/IibJX2o/vekasojo.pdfIn PDF document text
    • http://rasezatoxefu.mygamesonline.org/vilagepetiwasu.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/cX0ihEv/sivomese.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370540/normal_5fc6597b16ba0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449992/normal_5fceb085c011e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485926/normal_5ffcc1f3cec27.pdfIn PDF document text
    • https://cdn.sqhk.co/barosevarega/fFszNUd/24156090455.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/nojemi/59182127172.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/8040510749.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/boondocks_season_3_episode_5.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/tchaikovsky_concerto_violin_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/citizenship_application_form_n-_400_instructions.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_off0000d683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD683 5676 bytes
SHA-256: 42892cc40c864e26a9ba9b5d4525e9c32e576daf85e8e37734498cbc5482864a
font_01_sfnt_off0000e9b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B6 10004 bytes
SHA-256: 542baef35f80f56b6dd165f93fc277328c110ab14098a532ff31dd3c5c2d607a