Malicious PDF — malware analysis report

Static analysis result for SHA-256 16edaa749395c75d…

MALICIOUS

PDF

70.8 KB Created: 2021-02-17 12:44:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c63f58dac330c34ae30ec941c0f5f716 SHA-1: 930c4f44d71f31f39f99b63cf6ffbe8197101523 SHA-256: 16edaa749395c75df07ab1ebe8a53fb7c8aabc2d47d07831e1b93bfb0bde3807
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/123?utm_term=material+safety+data+sheet+sample+pdf PDF link annotation
    • https://cdn.sqhk.co/zimuteraf/ehadWid/galaxy_live_wallpaper_iphone_x.pdfIn PDF document text
    • https://cdn.sqhk.co/xudevekelefe/aihggCT/93413601107.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/GTihhdO/74449072161.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484365/normal_5feb62057dcb1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455183/normal_5fe3b307a0fda.pdfIn PDF document text
    • https://cdn.sqhk.co/detatakev/iigcIF0/schema_electrique_moteur_machine_a_laver.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/dgeaatT/rocket_racer_adopt_me.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/rubidokezive/antivirus_protection_for_windows_7_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/andra_day_rise_up_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/mosebusa.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/29598423605.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/roles_and_responsibilities_matrix_template_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/57314872498.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/buy_tarot_deck_online_india.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/80575230009.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/94327163376.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/47358613896.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/marked_for_death_shout_guide.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_off0000d81f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD81F 5388 bytes
SHA-256: c2ce5b7db74244edab89200ed67cf10fc754bc0bfffa4a609da292e77efb2f39
font_01_sfnt_off0000ea5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA5B 10432 bytes
SHA-256: f12688a201f2f06d30b9ba9384f56714747ddd1eab012e7032a788773aed10cf