Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cc98a284851f0fb…

MALICIOUS

PDF

70.0 KB Created: 2021-02-24 11:43:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 47d20c073981b08750d418257b3cbbe5 SHA-1: 3bb301871adc452abe395f58931c3187774c47d4 SHA-256: 0cc98a284851f0fb74bdda7bff899c4703c39200129c059844e5b8e2e157bc30
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=pocket+mortys+cheats+unlimited+coupons In PDF document text
    • http://dream-stat.ru/joyetech_evic_vtc_mini_no_atomizer_foundoraat.pdfIn PDF document text
    • https://cdn.sqhk.co/jirowolad/fSVOjcP/tvd_quiz_sporcle.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393193/normal_602774550f18a.pdfIn PDF document text
    • http://begemotiks.space/667673087383b9kx.pdfIn PDF document text
    • https://cdn.sqhk.co/nipigagavadu/jj1gibE/zombie_2_werewolf_cast.pdfIn PDF document text
    • https://dibumofum.weebly.com/uploads/1/3/5/3/135313591/79f7834d6.pdfIn PDF document text
    • http://shoop-fp.ru/how_the_grinch_stole_christmas_story_onlineu5vyj.pdfIn PDF document text
    • https://cdn.sqhk.co/fokivetezabu/PhdiicR/evergreen_747_supertanker_cost.pdfIn PDF document text
    • https://cdn.sqhk.co/gegefemorosu/jjherIx/can_you_stream_live_nfl_games_on_roku.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/RsJJgeD/best_wifi_file_transfer_android_to_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/phjgdib/pafakuvubojumobafis.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/i0ifjcu/general_movie_quiz_multiple_choice.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/tisawuliketuguro.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/bombay_tamil_movie_songs_starmusiq.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/jomazoteziz.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_off0000d060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD060 5480 bytes
SHA-256: e13bbcba1686148ced79fe323a539c470961e0e153d822bc36a3d94f2a2907fe
font_01_sfnt_off0000e2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E3 14776 bytes
SHA-256: 8a53705cefb18d3057e6cdec8adc74f0a8bd3bea9ec3abacde8b87fccf4c3b9f