Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7b0fe7c7b2894de…

MALICIOUS

PDF

70.1 KB Created: 2021-02-15 01:41:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7068493119285d0c7ad91206d99b5a02 SHA-1: 36fa08268eda1fd7157db53a16f91b53c8f3db60 SHA-256: b7b0fe7c7b2894de43c956b2639f6ce06d35269effc310ed0e944e62e4a99dd0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/123?utm_term=bench+seat+cars+2019 PDF link annotation
    • http://rm-swis-mine.com/41065354240iwj4n.pdfIn PDF document text
    • http://montana-media.com/jp_morgan_asset_management_application_formv2krt.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/wizedumi/sogakidudesiti.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/jakapiridamuxexo.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/bernhard_schlink_der_vorleser.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/debovusidepananif.pdfIn PDF document text
    • http://zoxedoronavo.epizy.com/selogozusorumuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/vlookup_to_bring_data_from_another_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/genial_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/97883544491.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/gorman_california_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/logo_quiz_answers_minimalist_level_11.pdfIn PDF document text
    • http://birabigipo.epizy.com/bc_framer_software.pdfIn PDF document text
    • http://gixisenusadat.rf.gd/compilation_report_format_icai.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/28631587171.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_off0000d470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD470 5384 bytes
SHA-256: d1af72f859586ae510df2f6280e5be118879435160351c0d25bd105580413907
font_01_sfnt_off0000e6b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B8 10868 bytes
SHA-256: d2f1136dcc46e986d4cd743505e00285a29113de22030d1723920bfac9e42ebd