Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a426dfba62c1b14…

MALICIOUS

PDF

82.2 KB Created: 2021-03-01 14:55:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cc258c2f9630dfe1673f97bd913edd70 SHA-1: b65b7dd12c0e840dbf502e61982564831a5c4279 SHA-256: 7a426dfba62c1b143a39eb17b8aa130503d54f2c6239576a7441ce52d181a5a8
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://kuzutuzo.ru/wix?keyword=luke+percy+jackson+death PDF link annotation
    • http://rumurel.mywebcommunity.org/do_solar_watches_need_battery_change.pdfIn PDF document text
    • http://helpcenterbusiness.xyz/algebraic_expression_lesson_plan5tqle.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/el_diario_de_greg_libros_similares.pdfIn PDF document text
    • http://nalobuberejiner.iblogger.org/15773519230.pdfIn PDF document text
    • http://universityru.fun/fanefekepejirawagojugew1j7j.pdfIn PDF document text
    • http://center-san.ru/rumavajadiverevi30bml.pdfIn PDF document text
    • http://linavaluviriv.getenjoyment.net/equity_alarm_clock_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/jirudumom/hgihJhe/forgotten_carols_movie_2020.pdfIn PDF document text
    • http://reactivaperu-viabcpi.com/ba_5th_sem_date_sheet_gndu9qvnk.pdfIn PDF document text
    • http://subezatedi.iblogger.org/wefukopagageto.pdfIn PDF document text
    • http://myshoes.moscow/4099226017xwyve.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/mefadedosuw/the_girl_with_the_dragon_tattoo_novel_by_stieg_larsson.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/election_of_1796_political_parties_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/alpha_blondy_cocody_rock_free.pdfIn PDF document text
    • http://viwuwijagabote.myartsonline.com/pentair_pool_pump_curves.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/vespa_px_125_manual.pdfIn PDF document text
    • http://sisufovofow.atwebpages.com/crossfit_workouts_with_weight_vest.pdfIn PDF document text
    • http://rajiwewovipu.epizy.com/17996492201.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_off00010702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10702 5312 bytes
SHA-256: 9c7a04a19ac4eeb2e77f9f76356bb0c0fd295131b3626885fb647a3f54eb5478
font_01_sfnt_off0001191d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1191D 10240 bytes
SHA-256: 5fbfabff0b80f07e65dc7ffd1ac375a4cb8ed3f146877d32f9a7199448adb858