Malicious PDF — malware analysis report

Static analysis result for SHA-256 e15e769e67f139d9…

MALICIOUS

PDF

68.3 KB Created: 2021-02-11 23:47:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ca7126e9f8eb8c01e876af73ce318d86 SHA-1: 390bbab5e9b0349ea6593aacbc9b743fb21f818f SHA-256: e15e769e67f139d9f927404f2f7ca4af1e2a5aeccacef465ca522ebe7533388d
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://crophysi.ru/wb?keyword=free%20%20whatsapp%20apk%20for%20windows%20phone In PDF document text
    • https://cdn.sqhk.co/bakavaxa/jfChhjb/football_heroes_pro_2017_hack.pdfIn PDF document text
    • http://vorecan.space/zutupileri6kq4u.pdfIn PDF document text
    • http://voicebftyi.com/ethical_values_in_report_writingn3ip6.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/gjiUXja/gun_master_2_unlimited_money_apk.pdfIn PDF document text
    • http://mebelintera.ru/ffxiv_enemy_iconsusz8k.pdfIn PDF document text
    • https://cdn.sqhk.co/keximovib/hjvNjcw/how_to_access_secure_folder_samsung_s9.pdfIn PDF document text
    • http://hookup153.fun/brooklyn_nine-_nine_season_5_episodejo4dz.pdfIn PDF document text
    • http://effektzhizni.ru/xamarin_forms_binding_source_selfof55o.pdfIn PDF document text
    • http://aicberg.net/gta_4_trke_yama_almay_durdurdu_hatasl1n38.pdfIn PDF document text
    • http://beliyden.xyz/classic_table_tennis_bladesbj7mw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457305/normal_5fef558094545.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/tupofelasujewas/grade_1_english_phonics_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/former_badger_basketball_players.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/customizable_meal_planner_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/games_billiard_online.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_off0000cc29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC29 5208 bytes
SHA-256: 9bde3cdda5ece5f00d65f19081899f7f6466f6dbfb35c483ee0e96588f45f876
font_01_sfnt_off0000ddf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF2 12328 bytes
SHA-256: 646d520d0a07944b00342a4101b2c860e2cccd8def4323fe0a267e4f7d0c8280