Malicious PDF — malware analysis report

Static analysis result for SHA-256 d758862d09b7355e…

MALICIOUS

PDF

68.1 KB Created: 2021-02-21 13:05:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6463c2f864e7c5fd676189e3321b3db7 SHA-1: 6e999747f65ed6dd6b36d0be33f541000655e7fa SHA-256: d758862d09b7355e08e93028fd4370c098bed571dc46d5d9baf863f9673f930d
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://seumenha.ru/aws?utm_term=rancilio+silvia+maintenance+kit PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366399/normal_5fc796e819080.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/iieZkKa/stranded_without_a_phone_game_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/vemikozoj/gi6jfUV/weather_nyc_today_10_day.pdfIn PDF document text
    • http://itprod.space/rocket_man_elton_john_lyrics_geniusy3b4g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474471/normal_60265fcfab7a0.pdfIn PDF document text
    • https://judozonax.weebly.com/uploads/1/3/1/4/131454501/714699.pdfIn PDF document text
    • https://cdn.sqhk.co/bilexodofose/b1GKl3m/dowexidogelixusujoxodu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386839/normal_602c67bfee332.pdfIn PDF document text
    • http://alfa-quest.ru/dini_oyunlar_indiriqqlo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473415/normal_600c037a96753.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/nuxomigo/apple_airpods_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/compartment_jac_exam_2019_date_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/flannelette_king_size_sheet_sets.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/gimixirijinokanizekudi.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/calibre_mac_gratis.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_off0000cc3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC3D 4980 bytes
SHA-256: 1fd6f14c35ce62ed12a80328c744b2a0c7188a67352354069bceaf61b000f188
font_01_sfnt_off0000dd2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD2C 10784 bytes
SHA-256: f4a4dd89b7ab4e4eefccdeab246d8ba53f9b343733406d17df63e8a4e27c98bb