Malicious PDF — malware analysis report

Static analysis result for SHA-256 58cf5ca777ee9ceb…

MALICIOUS

PDF

73.1 KB Created: 2021-03-01 01:10:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3810a5775c4e1d61b60c5a7cc948641f SHA-1: 0d6c10b4a481bd9c753a532baff18674ea0cdbc4 SHA-256: 58cf5ca777ee9ceb086d3e0a02a137ea13664659e27cfeb70c0a516479cb7e72
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://kuzutuzo.ru/award?keyword=arby%2527s+menu+nutrition+mozzarella+sticks PDF link annotation
    • https://cdn.sqhk.co/kawinojos/ep90Qjb/13966653224.pdfIn PDF document text
    • http://pedrons.space/miley_cyrus_wrecking_ball_album_coverm0xrf.pdfIn PDF document text
    • https://cdn.sqhk.co/nujidegowupi/gehbmzw/litekapawur.pdfIn PDF document text
    • https://cdn.sqhk.co/xovepejegosi/pBjdNhw/emoji_wallpaper_pic.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/iiiYvhg/rorezagupon.pdfIn PDF document text
    • http://pokemonrivals.online/70830829432t8oni.pdfIn PDF document text
    • http://paxezot.getenjoyment.net/macbeth_act_2_comprehension_questions_and_answers.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/paxuvagal/90083097047.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/batman_arkham_origins_mod_apk_latest_version.pdfIn PDF document text
    • http://tobikinos.onlinewebshop.net/dogezegutimilarixamewipo.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/42292970792.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/harry_potter_movies_online_peacock.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/rufojokavugew.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/boomerang_movie_in_isaimini.pdfIn PDF document text
    • http://siniligavaxuvul.onlinewebshop.net/cuisinart_dfp-14bcny_14-cup_food_processor_sale.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_off0000e1d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D9 5324 bytes
SHA-256: 13545d25959cb3476fddeab94f8e6b299057ce0b30d5ffc0f73f6a1648b1b931
font_01_sfnt_off0000f3f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F3 10428 bytes
SHA-256: 80d7fea7df8ada1995032c64e8729110a71395176cf17814cfdaab940fd2cb36