Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed30fb2f6028990a…

MALICIOUS

PDF

71.0 KB Created: 2021-02-19 19:17:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: be0b3953628560cafc8e098c9155f43e SHA-1: 16537ddd1f9f71c9647cd239a5509c6fdc8d2b9b SHA-256: ed30fb2f6028990a6a5901b224d83ae057a70dbfb4688fbdb9702664aa780034
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/wix?keyword=tmnt+legends+mod+apk PDF link annotation
    • https://cdn.sqhk.co/vajirasavuz/uM3Mggg/inside_out_theme_song_piano_sheet_music_free.pdfIn PDF document text
    • https://cdn.sqhk.co/musutalivun/j9pikhb/19637274959.pdfIn PDF document text
    • https://cdn.sqhk.co/porodiwaten/jbjb1je/dapujasewinaxiz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470545/normal_600cfe178bf45.pdfIn PDF document text
    • https://cdn.sqhk.co/gutipefu/ha1jdYL/20433035468.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459926/normal_5fca91ff363c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365567/normal_5fd2a7430d0e6.pdfIn PDF document text
    • https://cdn.sqhk.co/tulazofava/cqgd1Nd/95738244458.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426972/normal_60089b8c98903.pdfIn PDF document text
    • https://cdn.sqhk.co/bujavenizake/RD35jF5/xovoguvunuvewifub.pdfIn PDF document text
    • https://cdn.sqhk.co/gemadaruvow/468kZjf/champions_hockey_league_teams_map.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/DFihjhX/nalozebofokokomilik.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/boxalewijim/how_to_calculate_t_score_and_z_score.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/tencel_lyocell_sheets_britannica.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/bamojabiwof.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/fun_poetry_writing_activities_for_middle_school.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/mugen_rao_abinaya_full_song.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_off0000da2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA2B 5196 bytes
SHA-256: 9ee444d6c6037a6cd862c7cb95ec556f1a3c6fa509cd128bf3015420d842689e
font_01_sfnt_off0000ebce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCE 10172 bytes
SHA-256: 5760e8b976d2349ab661bf920025ba7fae67bf52dc8fcfc79f7c83e32c88b583

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