Malicious PDF — malware analysis report

Static analysis result for SHA-256 53bceb430d644d3e…

MALICIOUS

PDF

71.2 KB Created: 2021-03-02 00:36:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 77f7fa6bfe19b2edfaee3f3c35e7e9d7 SHA-1: 267a560c9f6fe6afd2a3c5adb2ab9ab643a49918 SHA-256: 53bceb430d644d3ec42f895f016cfdce58929b14ac1a2030d7ac86960082a2da
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://vilenefex.ru/wix?keyword=d%2526d+swamp+monsters PDF link annotation
    • http://8gusevshop.space/how_to_read_chart_astrologyd4a9z.pdfIn PDF document text
    • http://mx50off.info/dunudagedadibuxakovod7glmz.pdfIn PDF document text
    • http://feludekinopotas.scienceontheweb.net/romaine_lettuce_calories_per_serving.pdfIn PDF document text
    • http://osthondroz.com/what_do_a_check_look_likehcefy.pdfIn PDF document text
    • http://xifelaseb.22web.org/business_model_canvas_theory.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404523/normal_5fcce5dc61026.pdfIn PDF document text
    • http://rafupofamurawaf.mygamesonline.org/what_are_the_elements_and_principles_of_sculpture.pdfIn PDF document text
    • http://modalidetefid.iblogger.org/corbettmaths_2014_answers_parallel_lines.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/jobavo/21798970980.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/catia_learning_book.pdfIn PDF document text
    • http://zaxalamel.rf.gd/59833267648.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/what_size_bag_can_you_carry_on_spirit_airlines_for_free_in_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/dell_precision_390_workstation_specifications.pdfIn PDF document text
    • http://tokofelutuj.epizy.com/arabesque_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/dutozidasinurosegozinev.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/fojiruzibonuvo.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_off0000dda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA5 4156 bytes
SHA-256: 58eabb24298f18ab3cb5c3f3a5652a185830994b36fd37cd9ad46fcf77495092
font_01_sfnt_off0000ebd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD4 10992 bytes
SHA-256: 17eb3e97a10f9cd5d568dfb02a95127bd6e761d63234293abb77c572013b644e