Malicious PDF — malware analysis report

Static analysis result for SHA-256 53b449597112c2ca…

MALICIOUS

PDF

72.8 KB Created: 2021-02-06 00:18:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 025260e63bb4d1da2bf2f4e7e69dcdd0 SHA-1: 93ae52750b5f3746b1544aa24393ff62c317acfa SHA-256: 53b449597112c2ca071ccd2549ba527392cb3b6175e07ae58a5ff50a85f31f9c
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://jottigo.ru/aws?utm_term=pho+chicken+soup+nutritional+information PDF link annotation
    • https://cdn.sqhk.co/jowapezo/eG9hi5D/16081184103.pdfIn PDF document text
    • https://cdn.sqhk.co/lexoxuxoluvi/MWhhhcc/driving_school_sim_2020_hack_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/GibXji6/bisodeligerivideme.pdfIn PDF document text
    • https://cdn.sqhk.co/bumigorawi/ihnhbgi/fabfitfun_promo_code_annual.pdfIn PDF document text
    • https://cdn.sqhk.co/zolewiko/gjcjiie/good_roblox_games_that_cost_robux.pdfIn PDF document text
    • https://cdn.sqhk.co/sawitofi/fqfHoih/entrepreneurship_and_innovation_course_description.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/icidjbi/buzzer_beater_nba_2k20.pdfIn PDF document text
    • https://cdn.sqhk.co/fufigavaki/ZZjejcn/nijawivavalanix.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/ddJtwV4/96859024991.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/kujapomib/sitinumopijowi.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/automatismo_cardiaco_definicion.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/continuous_random_variable_example_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/55439030146.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/pte_describe_image_line_graph_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/15380186480.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/bobby_malayalam_movies_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/37378482488.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/zuvutekofavudafijel.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_off0000e078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE078 5320 bytes
SHA-256: 854a960838a67a7b93d3e79c63b2e9aca4ec9037459ac92649f9b7a7df91f776
font_01_sfnt_off0000f26a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26A 10468 bytes
SHA-256: 86165a91e8a2625cc520590dfa15ffccbeb006a0c70b3561cafd50ac1640d080