Malicious PDF — malware analysis report

Static analysis result for SHA-256 2610c3cc17467a64…

MALICIOUS

PDF

69.0 KB Created: 2021-02-21 10:27:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 77d453dbddc09a00a91dbbdd8934e874 SHA-1: 71b5f6d628d70c7a13d9c77e94928babf66bac12 SHA-256: 2610c3cc17467a64970ed7559e10dd17543d6c4346d650c144f30150e0264883
136 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
  • 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://jacksth.ru/wix?keyword=d%2526d+4th+edition+dungeon+master%2527s+guide+2+pdf PDF link annotation
    • http://sparzha.club/literatura_del_renacimiento_espaol_autores_y_obrasi6iw0.pdfIn PDF document text
    • https://cdn.sqhk.co/nizekidido/jb5wJkG/mind_games_movie_2001.pdfIn PDF document text
    • https://cdn.sqhk.co/susojareb/Fgcjbic/daminel.pdfIn PDF document text
    • https://cdn.sqhk.co/volumusigu/tqYPJjh/ladubodiwufixomugazokadam.pdfIn PDF document text
    • https://cdn.sqhk.co/valipovu/ahbifjh/23080292057.pdfIn PDF document text
    • http://izzzaaa.space/531157704668epzh.pdfIn PDF document text
    • http://shimano-stradic.ru/wellington_film_guidetw8lm.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/bZii8TY/my_moy_virtual_pet_game.pdfIn PDF document text
    • http://martans.space/the_man_in_the_high_castle_season_1_reviewzzy1u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485576/normal_5fef0a2c3be0b.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/woberiz/jack_reacher_the_affair_movie_cast.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/goweto.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/anticipatory_anxiety.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/motor_vehicle_bill_of_sale_texas.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/indian_capital_market.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/zasave.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/transformers_studio_series_deluxe_class_sideswipe.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/what_is_singer_songwriter_genre.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/36515446157.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_off0000d7b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B2 4156 bytes
SHA-256: 7b9a78bc71d00e4bcff8473d51fc82c270a18144a13d22e5cfd906eda86eaada
font_01_sfnt_off0000e5df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DF 9840 bytes
SHA-256: 279d006dfe41a82bf6342f06862685d2dc2ab82602da4249aa4e7537db5e778a