Malicious PDF — malware analysis report

Static analysis result for SHA-256 95c0fe5bd6ac210e…

MALICIOUS

PDF

73.5 KB Created: 2021-02-16 10:49:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d1a4a055d6307ad69c8b7965d1bf32b2 SHA-1: 825af7aedad71ece1b9788b37a1aae8559980cdf SHA-256: 95c0fe5bd6ac210ee4d7ba9ecad9e45d3fa568e1b3fbb476037e7095a9789349
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=how+to+clean+baby+bullet+base PDF link annotation
    • https://cdn.sqhk.co/jagapifa/xiagfhe/best_pickup_truck_2020_mpg.pdfIn PDF document text
    • https://cdn.sqhk.co/lazogapuvo/u1ggkRH/skull_live_wallpaper_for_iphone_x.pdfIn PDF document text
    • http://metryck.info/certificate_border_design_psd_file_freec7j5k.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwifemi/rjbOWtq/33176163221.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/djfdhgx/59385589413.pdfIn PDF document text
    • http://trynutra.shop/44744605515rrgnj.pdfIn PDF document text
    • http://gulonibujivul.iblogger.org/tofiziwon.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/ibjjeAN/stickers_for_iphone_7.pdfIn PDF document text
    • http://sinoniwim.22web.org/81094995442.pdfIn PDF document text
    • https://cdn.sqhk.co/lebexuzo/objhHgj/fill_up_drill_holes_in_wood.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/nasitevu/8698310102.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/lejurawuvuzoku.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/pezuparoboloxuzupegubex.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/english_worksheets_for_grade_5_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/rupotefoxaduwaxefupebuboj.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_off0000e27a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27A 4992 bytes
SHA-256: 1ab25757fd357499fade19e70f091dc5fa5cb204218456ebddb815c58a96d450
font_01_sfnt_off0000f39d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39D 10996 bytes
SHA-256: c7cce5ecc2e23068bb8876d8d9481ef3e84d64317411c5392a1ac09d05847379

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