Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d2d7aa2d1196a9b…

MALICIOUS

PDF

69.5 KB Created: 2021-02-22 13:42:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 629a6cae3ea83b7dfe9e40ccf3d3b879 SHA-1: 9262cfde76c5ff0944b8c5576e86a2332efe0fa3 SHA-256: 6d2d7aa2d1196a9b09c270fecc04c902ec8d1ec09f9cad3d1d47c9d69c052dbb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=ap+statistics+quiz+d+chapter+13+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486971/normal_5fe7ad77e6269.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470687/normal_602da68b8f69d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460709/normal_6031bfc78392f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494147/normal_5fe0bdc8686d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410204/normal_601d369db5e98.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459631/normal_5fdd2f81c5fae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413693/normal_5fde5376cc3de.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/sinadi/fundamentals_of_computer_systems_4th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/horror_movies_2017_free_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/dovewisixaganutaganumub.pdfIn PDF document text
    • http://visowad.epizy.com/16099380780.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/honda_generator_2200_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/british_royal_family_tree_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/free_windows_10_activator_kmspico.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/american_industrialization_worksheet_answers.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_off0000d19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD19C 5768 bytes
SHA-256: 8fe4d883adfd350bf73cf1a7067432054dcedae04e86d98091066467357320e5
font_01_sfnt_off0000e55c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55C 10528 bytes
SHA-256: f4ed8fb4ebb5c9fd003c6e764c4b1f428d2d294ee4116f38fc6ced8ca7b5ec36