Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fca47d4ffd24cd7…

MALICIOUS

PDF

63.8 KB Created: 2021-02-13 18:07:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 922be5dcc0ca19dc899f2ec1c8c7d64b SHA-1: a3940a785bb538d02e008efb147abfbab731de72 SHA-256: 6fca47d4ffd24cd7d3c8f798a9ed2b1ab17237aecf87bfc0fb273d56c0977df3
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=analyzing+climate+data+worksheet+answers In PDF document text
    • http://fastgetme.online/gagujevaxuvokimegevokasw880y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489730/normal_6012dea25ee07.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489716/normal_5fedc7b586e69.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/hIihaij/formula_one_2019_winners_list.pdfIn PDF document text
    • http://netlysy.online/brainly_homework_appiyiow.pdfIn PDF document text
    • http://xitnet.fun/2931722628786ma6.pdfIn PDF document text
    • https://cdn.sqhk.co/rivitovolu/so4jekK/fundidora_monterrey_mapa.pdfIn PDF document text
    • http://bigswinner.space/google_sheets_standard_deviation_error_barseg981.pdfIn PDF document text
    • http://whitecheat.xyz/zosudev7loq.pdfIn PDF document text
    • http://apparently-home.com/bupedejami7ghps.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457876/normal_5fcebf5b55df7.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/lejivugeleguwod/envato_powerpoint_templates_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/14772833722.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/27558300320.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/parallel_and_antiparallel_beta_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/hosanna_hillsong_music_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/60053571974.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/bd_army_job_circular_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/lbi_weather_report.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_off0000bcfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCFE 5648 bytes
SHA-256: 36a36f4b8cc8b15e22b4e439402d47b8c3f38d91e53b9f9957f12670ad3a46fd
font_01_sfnt_off0000d033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD033 9896 bytes
SHA-256: 06ef29fa1946e504edff2f629c9169473ef74bc97653de06fc7b51c4bdb89e88

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