Malicious PDF — malware analysis report

Static analysis result for SHA-256 e535e960bed4660a…

MALICIOUS

PDF

72.7 KB Created: 2021-02-26 01:53:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9c3c6ce8828ab77389aca4e305dc61c7 SHA-1: 8733ef43dd86efbabba790196427852a748fd57a SHA-256: e535e960bed4660a2eacfb13450001b505542774e71bb65f025e7feefa642a08
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://bologen.ru/wix?keyword=8th+grade+math+final+exam+pdf+2019 PDF link annotation
    • https://luzulobopado.weebly.com/uploads/1/3/2/6/132681737/5040.pdfIn PDF document text
    • https://cdn.sqhk.co/jotoselu/95gdVia/girl_fashion_dress_up_games_free_online.pdfIn PDF document text
    • https://gosomojigu.weebly.com/uploads/1/3/1/4/131438658/posefifas.pdfIn PDF document text
    • http://xuvaxujogilo.mygamesonline.org/kusakapaxuwokesugokakimoj.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/p8iaWge/25670971336.pdfIn PDF document text
    • http://safijejog.mygamesonline.org/kosal.pdfIn PDF document text
    • http://forovasax.medianewsonline.com/how_to_reset_a_bravos_xl_washer.pdfIn PDF document text
    • https://faneboluti.weebly.com/uploads/1/3/4/4/134464249/dabuduzob-fajibivu-gadada-fakonol.pdfIn PDF document text
    • https://wutiboduselojo.weebly.com/uploads/1/3/4/6/134665342/9309545.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/aiaAXwN/sniper_ghost_warrior_3_weapons_unlock.pdfIn PDF document text
    • https://lomekizawulom.weebly.com/uploads/1/3/4/7/134704223/6077728.pdfIn PDF document text
    • https://cdn.sqhk.co/kubepugemaki/tifyVhj/asphalt_nitro_mod_apk_android_1.pdfIn PDF document text
    • https://rozigakix.weebly.com/uploads/1/3/2/3/132303329/peloderoxezamaxu.pdfIn PDF document text
    • https://nutolifawivu.weebly.com/uploads/1/3/1/4/131437776/vorowovufolej.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/jobavo/salenamumigenakesomo.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/is_eso_worth_it_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/fezozixafululozakex.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/android_apps_logo_maker.pdfIn PDF document text
    • http://girofili.myartsonline.com/the_mingling_of_souls_quotes.pdfIn PDF document text
    • http://vunonam.atwebpages.com/how_to_describe_a_graph_in_words.pdfIn PDF document text
    • http://futikuzita.onlinewebshop.net/les_miserables_musical_cast_2020.pdfIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/bugakoliwitepov.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/ven_y_toma_el_trono_letra.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_off0000dbc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC3 5928 bytes
SHA-256: 6d037092cfd6130a7482628fa76bf2b56339f26f9b0ed967766a05a329d9163d
font_01_sfnt_off0000efd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD1 11016 bytes
SHA-256: e042d150188b0bc5e5a946aacd7d5d1b74bf9bb086e8dff4db155a058b2cddc5

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