Malicious PDF — malware analysis report

Static analysis result for SHA-256 863e5c39e87c1338…

MALICIOUS

PDF

70.8 KB Created: 2021-02-05 21:47:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 30b7607490decf5475c0a6f9e4d5513e SHA-1: 11efd135f460e53affc973be868441a2dcaa4206 SHA-256: 863e5c39e87c1338ec0faf89873a0886981e9e71535838af74d71c037ec4a825
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://leonvi.ru/wb?keyword=sqlite%20function%20date%20format PDF link annotation
    • http://jitokinut.iblogger.org/32218248535.pdfIn PDF document text
    • http://winwites.space/txdot_form_130-u_instructionsl36lm.pdfIn PDF document text
    • http://niludop.22web.org/ahimsa_malayalam_film_songs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458829/normal_5fd1f3b5172e3.pdfIn PDF document text
    • http://wegolurubakisud.22web.org/aaja_mahi_song_mr_jatt.pdfIn PDF document text
    • http://tohld.in/401672887504xib.pdfIn PDF document text
    • http://shoop-fm.ru/coloring_pages_christmas_light_bulbsegmok.pdfIn PDF document text
    • http://confirmyourverifiedbadge.com/31748939486z0urj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481285/normal_5fc64802b97f5.pdfIn PDF document text
    • http://d-youtube.com/full_steam_staffing_salinas_california47agu.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/legapatatezisa/economics_igcse_textbook_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/99934942813.pdfIn PDF document text
    • http://timavutiziv.epizy.com/cavalier_5e_guide.pdfIn PDF document text
    • http://wedutatitupaze.epizy.com/fate_grand_order_drop_rate_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/cv_template_uk_free_word.pdfIn PDF document text
    • http://diwigivexuvobe.epizy.com/domain_driven_design_java.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/autocad_building_drawing.pdfIn PDF document text
    • http://rexawisoza.epizy.com/best_resume_templates_for_freshers_word.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_off0000d786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD786 5220 bytes
SHA-256: aeabd4eb87adb5dd9c395ea5bbef834f32cf0b33c31a97428ded29bdf4df2b65
font_01_sfnt_off0000e932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE932 10988 bytes
SHA-256: bd0fd537762b70e02aba148b92ef4de1cc5f5f07d13aa8c009cc1717e21c95a4