Malicious PDF — malware analysis report

Static analysis result for SHA-256 33c0890bc6c08db4…

MALICIOUS

PDF

71.6 KB Created: 2021-02-24 01:23:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 05a11797261c29e86bac0ac4aec9cde2 SHA-1: 68303d464fdf6ac42013cf4fec359af2afec3514 SHA-256: 33c0890bc6c08db46be0b0f6397636e7699101ee7bc4dd28c5c189dd2689b9d3
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://seumenha.ru/wix?keyword=527+area+code+canada PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4480408/normal_5fe004da702ea.pdfIn PDF document text
    • https://cdn.sqhk.co/nesadatifu/u7KjaWt/robukovemaxolipum.pdfIn PDF document text
    • http://waystep.site/eurovision_2019_final_score_sheetsjww1.pdfIn PDF document text
    • https://cdn.sqhk.co/pujapipiwat/fjQgjgj/11315104303.pdfIn PDF document text
    • http://detonicro.website/24574946551ya5kv.pdfIn PDF document text
    • https://cdn.sqhk.co/loxepafigav/IWQVyhc/delububorob.pdfIn PDF document text
    • https://cdn.sqhk.co/barugogip/iadhgRx/deluzak.pdfIn PDF document text
    • https://cdn.sqhk.co/wifavizen/gghdBhc/charlie_chaplin_the_great_dictator_speech_with_subtitles.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://serepuzokoz.epizy.com/40765781670.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/vubulinadijipuxuditijokid.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/70586758938.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/is_uglies_a_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/85173481295.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/equifax_credit_score_report_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/gm_diet_menu_plan_philippines.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_off0000dd0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0C 4964 bytes
SHA-256: f1fde1d10e475f9efb28d8e0a1fa59c60cecd6e00a110cbdba368b0995686c10
font_01_sfnt_off0000ee05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE05 10476 bytes
SHA-256: c7da057f609b63d48d67534e5dff26a8d84b7c87fd91621ceb6c2ae1c77e0f46