Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dc9ebf8408b0685…

MALICIOUS

PDF

71.9 KB Created: 2021-02-23 22:26:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e7ec08754a4fa34411229ae675a92f50 SHA-1: 211615d5932a83638d04854f051060a6a353993d SHA-256: 5dc9ebf8408b0685484395ad5719c75a4d11c5bfc71a6df5d708ad536d1aa730
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://jacksth.ru/wix?keyword=head+soccer+unblocked+world+cup PDF link annotation
    • https://cdn.sqhk.co/ledodatefu/gdgdigI/weather_hour_by_hour_appleton_city_mo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490365/normal_601fb45d3173a.pdfIn PDF document text
    • https://cdn.sqhk.co/duzimisese/6Qflojb/dumujomidixudewega.pdfIn PDF document text
    • http://bonifacy.site/wiwutajoxug97n3.pdfIn PDF document text
    • http://anyita.space/431993790962zrx5.pdfIn PDF document text
    • http://afracheat2.xyz/904389661508zzol.pdfIn PDF document text
    • http://razvivatel.blog/besamyt8fi.pdfIn PDF document text
    • http://discount50it.pro/assetto_corsa_vr_performance4pxiy.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/domegagowevag/what_is_the_strongest_loop_knot_for_fishing.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/bezamobesev.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/astrology_software_in_bengali_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/pop_warner_scholar_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/credit_suisse_global_wealth_report_2010.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/adjectives_worksheets_grade_2.pdfIn PDF document text
    • https://www.youtube.com/watch?v=khV6hg0oFEoTheIn 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_off0000ddfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDFB 5324 bytes
SHA-256: 7cc23f885013f4e46281c2df69447240cd046fac826008c01f486185e20c3da0
font_01_sfnt_off0000f02c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02C 10184 bytes
SHA-256: a3b7448951e793978c30da976cfb05bd2afc4e4cb4467f3f9918d88d4417cba2