Malicious PDF — malware analysis report

Static analysis result for SHA-256 490855b4814f36b2…

MALICIOUS

PDF

79.3 KB Created: 2021-03-04 21:42:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 47cd286969560e8f1912a791a7934e9b SHA-1: b09b4b663ee6458ed8011b2555ffd747bb0bd603 SHA-256: 490855b4814f36b284bfccac1efa2763bfe448062c19374bff96eae2525e51c8
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://gimoguvi.ru/wix?keyword=bollokan+prairie+location PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kigavanus/injury_incident_report_template_free.pdfIn PDF document text
    • http://likusikukir.epizy.com/pod_k8_v2_knee_brace_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/475f31ff-50d3-4ca5-b480-69887f3d3817/45268040480.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/xebejat.pdfIn PDF document text
    • http://suzawelo.epizy.com/aadhar_card_form_fill.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/nepodel.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/is_magic_bullet_worth_it.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac568734-8da0-4014-87e8-52954149325c/learn_python_for_data_science_online_course.pdfIn PDF document text
    • http://tunivepusage.epizy.com/batman_vs_superman_java_games.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/963608a5-9f55-406d-829d-783a24709d1e/xerotowewexukiwarolaride.pdfIn PDF document text
    • https://233b4d2f-9c44-4004-b776-098ebc281e6f.filesusr.com/ugd/7f980c_8eb0999945304d289bdef47264c94811.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zulezov/how_many_points_do_you_need_to_pass_the_road_test_in_ny.pdfIn PDF document text
    • http://rivobuzuxi.epizy.com/63243152650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f9c640b-71d5-4975-a655-d6e661e72843/does_cash_app_have_penny_stocks.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/ant._com_video_er.pdfIn PDF document text
    • https://39472683-7d43-4bc3-882b-0947a83fd973.filesusr.com/ugd/544c7e_6ec862bef781429997c8b3c8c59c886a.pdf?index=trueIn PDF document text
    • http://zizajaw.epizy.com/phonics_pathways_boosters.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/climate_analysis_and_building_design_guidelines.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_off0000ec25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC25 4864 bytes
SHA-256: cdb91d7feea0c12752b3cb98a2201ca5cd0149fcdd446333313cd94d58225147
font_01_sfnt_off0000fcbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBD 16160 bytes
SHA-256: cc414bb3d3195039dc2333ff8e9de36fb1e9e75acba7a6a99bae87fbee915aef

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