Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f38c394c7fbf33e…

MALICIOUS

PDF

70.4 KB Created: 2021-01-31 08:05:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b72072c11bfd2fff931c8b5eb1711af2 SHA-1: 31d9b277d0be84249a4c4b24e9e2df8c322bd154 SHA-256: 6f38c394c7fbf33e79f8a97fc7a70d40515377a95e878864f9ad5e014e69eb70
136 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
  • 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://maypoin.ru/wb?keyword=roblox%20zombie%20strike%20codes%20fandom PDF link annotation
    • http://help-copyrightviolationhelpcenter.com/top_virtual_world_apps_gamesqdygt.pdfIn PDF document text
    • https://cdn.sqhk.co/tefupudoma/ggm55ge/sixavimuxuja.pdfIn PDF document text
    • http://businessoutsourcing.info/opsu_beatmap_player_for_androidp652q.pdfIn PDF document text
    • http://iranianvc.com/race_to_270_scholasticg2kxk.pdfIn PDF document text
    • http://newberginvestmentproperty.com/iap_immunization_schedule_2020_downloaddx5cm.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/fekazudabo/interview_questions_for_automation_testing_with_answers.pdfIn PDF document text
    • http://tulakitukubipi.epizy.com/word_cookies_game_all_answers.pdfIn PDF document text
    • http://lulikeleweworup.epizy.com/21023012015.pdfIn PDF document text
    • http://kavobomuvaweg.epizy.com/gofunux.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/anki_ios_free.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/rockler_cribbage_board_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/difference_between_dashboard_and_report_in_cognos.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/zevopazusow.pdfIn PDF document text
    • http://fipiwafupogo.epizy.com/checkout_51_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/suduwan.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_off0000d538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD538 5496 bytes
SHA-256: 580b946c32e0c5e5aa9bf485d3575304dc4be210c95fe346db2dee289b9144fc
font_01_sfnt_off0000e7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E4 10864 bytes
SHA-256: 518c474476a29fc4504a4912aca9f5d59cc8ee460fa1b5834320dc9d2f7c8527