Malicious PDF — malware analysis report

Static analysis result for SHA-256 49b9b831afc1764e…

MALICIOUS

PDF

67.9 KB Created: 2021-01-25 11:04:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1213425d1a72a1a33830e3484aa22eec SHA-1: 4fa196f2eae51f04efe4efa73e6e708a03772cee SHA-256: 49b9b831afc1764e5158cf7f8cd2ddbd2cc204d3c6f5c4e2a3064c03d2a131a6
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://druttle.ru/wb?keyword=ravon%20bonner%20illinois PDF link annotation
    • http://mestorating.ru/epic_games_support_number3o71m.pdfIn PDF document text
    • https://cdn.sqhk.co/mamevugixej/dibn5Yu/balls_bricks_breaker_apk.pdfIn PDF document text
    • http://bobatukuxoto.iblogger.org/agriculture_company_profile_sample.pdfIn PDF document text
    • http://svoylend.xyz/hide_photo_locker_apkh55a6.pdfIn PDF document text
    • http://piriketag.22web.org/ftii_full_form_in_marathi.pdfIn PDF document text
    • http://mixed-rootwork.com/fly_car_game_online2fzct.pdfIn PDF document text
    • https://cdn.sqhk.co/rokabumake/POjfDih/best_tool_kit_for_home_australia.pdfIn PDF document text
    • http://potolkilife.ru/36334049853k666m.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/pipaneku/lodijofulejaxupewo.pdfIn PDF document text
    • http://gesesasogibigaw.rf.gd/dibafor.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/equifax_credit_report_request_address.pdfIn PDF document text
    • http://wikidupuzok.epizy.com/77432041625.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/free_border_templates_for_word_documents.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/decision_tree_template_powerpoint.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/lirifefavebep.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_off0000cfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE6 4888 bytes
SHA-256: 9ed83189c38c26329158ebda064e348075545648e65143d27b84b9eb08488094
font_01_sfnt_off0000e098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE098 10076 bytes
SHA-256: 8fcbded4e20e94900c0e60f1b531190c8d66b21b9ad5792a8c53384c76472752