Malicious PDF — malware analysis report

Static analysis result for SHA-256 15a6bd867ff64f35…

MALICIOUS

PDF

69.3 KB Created: 2021-03-04 13:04:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d2decf79c3528fb88c6a3d298f932f1d SHA-1: 0927dd433ce6e8bdbb4a0eb55083b95d75aae059 SHA-256: 15a6bd867ff64f35cbf65cf9c85a69a6e34bdbea79d4edf39de2edd5f03eb140
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/award?keyword=guitar+method+book+1+hal+leonard+pdf PDF link annotation
    • https://cdn.sqhk.co/gobopovupav/7Qifehg/zulabixili.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/iajaHA0/sedopuzese.pdfIn PDF document text
    • https://cdn.sqhk.co/nifodotiriru/Mgcohbm/doodle_jump_khan_academy.pdfIn PDF document text
    • https://cdn.sqhk.co/noremixujor/uvx9fge/galaxy_movie_theatre_carson_city.pdfIn PDF document text
    • http://bitsracing.net/fundamentals_of_the_faith_lesson_2_answer_keycqmvo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450427/normal_5ff541c602a04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478927/normal_603eaec0ac23c.pdfIn PDF document text
    • http://hesap-al-sat.com/vubanupx0nm.pdfIn PDF document text
    • https://cdn.sqhk.co/pedidagow/iayRW7W/spoken_english_grammar_free_download.pdfIn PDF document text
    • http://livecopyrightverification.com/tamil_pundai_padangal_facebookql6ts.pdfIn PDF document text
    • https://cdn.sqhk.co/zorezibeb/dmOhcPY/fashion_doll_princess_story.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406776/normal_602ad6b0aed62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366308/normal_6014136c8a36a.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/fifomi/mignonne_allons_voir_si_la_rose.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/reading_comprehension_worksheets_first_graders.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/cotton_spinning_mill_project_report.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/sitak.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_off0000d29e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD29E 5388 bytes
SHA-256: d68deda4958de9708b9eb849494b43401b9e1dd9fc8b0636886c29a60b90209b
font_01_sfnt_off0000e4c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C9 10220 bytes
SHA-256: 195b4fc1cd3f7057dcdb645923f0989092a0bae958bc9bbd059aeb913719c8a3