Malicious PDF — malware analysis report

Static analysis result for SHA-256 2790266314d19e4b…

MALICIOUS

PDF

76.6 KB Created: 2021-03-02 17:02:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f444f0d88082759910f604cf240009ed SHA-1: 65d4d08a92aaa2ce36a54efddd05cad9062bf572 SHA-256: 2790266314d19e4b10af4c6eb59b61d6114e9cb885c11f0f3a4ad57efc8425ae
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/award?keyword=pilgrim+at+tinker+creek+chapter+1+summary PDF link annotation
    • http://yarrebitteh.online/how_to_be_fbi_swat39h7n.pdfIn PDF document text
    • http://koponegigat.medianewsonline.com/metekuzute.pdfIn PDF document text
    • http://manovina.mypressonline.com/ribesu.pdfIn PDF document text
    • https://cdn.sqhk.co/dejowipapoli/mlgdigN/17274392269.pdfIn PDF document text
    • https://cdn.sqhk.co/xobitabab/Xichc8W/virus_bacteria_and_protist_venn_diagram.pdfIn PDF document text
    • https://cdn.sqhk.co/kiribikiv/ghdYEhb/greatest_jump_scares_of_all_time.pdfIn PDF document text
    • https://cdn.sqhk.co/savimatuv/IjiAidk/hunter_assassin_online_crazy_games.pdfIn PDF document text
    • http://copyright-security-ig.com/the_long_dark_story_guidehsrx5.pdfIn PDF document text
    • http://ihsteam.ru/regavazekijoihn19.pdfIn PDF document text
    • http://meblik.su/the_prentice_hall_reader_10th_editiontpzok.pdfIn PDF document text
    • http://yesstore.pro/zuzalixetobivufapaloxa3bcsx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393345/normal_5ffe55ba6e807.pdfIn PDF document text
    • http://usacreditscore.info/5675024541612ft0.pdfIn PDF document text
    • https://cdn.sqhk.co/kezagajasiw/Gguhazd/onkyo_hf_player_iphone_review.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/nizatokabejowafanop.pdfIn PDF document text
    • http://jotitojimo.mygamesonline.org/can_i_use_google_maps_on_my_apple_carplay.pdfIn PDF document text
    • http://lenugaguv.medianewsonline.com/vazovagalebonagosojovog.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zepizevut.atwebpages.com/pebexesurikoziwawema.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_off0000f003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF003 5568 bytes
SHA-256: c84bca6799e159eb2c8813406abca17188a2f9c2a4ed5afb6f5c4e1c79c894fa
font_01_sfnt_off000102d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102D7 10000 bytes
SHA-256: 832617dbbf95636d0d11a421686f81fc80f2f1d511f4739763149e1ff5800598