Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb237798b0e38b8e…

MALICIOUS

PDF

60.2 KB Created: 2021-02-15 13:12:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: eb02a3d2df94a0c0814d18fa294af144 SHA-1: fdedb29563d1b1ba29c2157f32ec50706b29af6b SHA-256: eb237798b0e38b8edbfffeed4556411e797e193dac8d2df4b0703edee11971d1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/123?utm_term=social+psychology+experiments+youtube PDF link annotation
    • https://cdn.sqhk.co/xojelumegasi/d8jd5og/zabejudipagu.pdfIn PDF document text
    • https://punobedu.weebly.com/uploads/1/3/2/6/132683181/fa6eba36a2dc8a.pdfIn PDF document text
    • http://rilotelexewobos.iblogger.org/determine_right_triangle_from_side_lengths_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvetuzaxi/BjfXifp/82642679604.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/uhg5jeS/epic_word_search_printable_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/jamBial/drum_kit_parts_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/kekagate/ibheQio/brawl_stars_mega_box_simulator.pdfIn PDF document text
    • https://bogijaxik.weebly.com/uploads/1/3/2/6/132682919/rilig.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/jitimesolagun/cars_movie_soundtrack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/88624488825.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/hearthstone_arena_deck_builder_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/avital_3100_install_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/papepojoremofoz.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/google_slide_templates_halloween.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/aesir_monument_sniper_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_off0000b016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB016 5760 bytes
SHA-256: 654a35da4fc37897486b18316b6da338966a6d19dc41bb6f53e5b16d74c85c9f
font_01_sfnt_off0000c393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC393 9512 bytes
SHA-256: 725ca3eb22be8e9bfc61e0a11dc75178498a9f55f8b976cbe5820cf73c14d578