Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dfd11c0c6c77924…

MALICIOUS

PDF

72.0 KB Created: 2021-02-06 22:16:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: ff242023815bcd53b7a3ab154b72e09e SHA-1: c3c96560f5cb16d8eb384ca070d0648c693be68c SHA-256: 2dfd11c0c6c7792423e9716db518790b4a9573162732f34d59048c2dafaf4bf9
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://jottigo.ru/123?utm_term=do+ferrets+bite+a+lot PDF link annotation
    • https://cdn.sqhk.co/rebawigabog/Uje4qu6/prospect_umc_covington_ga.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/eyij3jj/parents_cash_gift_tax_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/muwizavo/2Vjbajg/sinuxafozajoxi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380088/normal_5ff2ac4ae1051.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448540/normal_5ffcb3f83abfb.pdfIn PDF document text
    • https://cdn.sqhk.co/ximepadogi/cTtnja7/my_location_zip_code.pdfIn PDF document text
    • https://cdn.sqhk.co/tubafejog/Eifhhjg/anatomy_diaphysis_function.pdfIn PDF document text
    • https://cdn.sqhk.co/dikozogub/i5TjiF8/clash_of_clans_world_championship_2020_date.pdfIn PDF document text
    • https://cdn.sqhk.co/zurefaxenov/4ieTj0h/olvidarte_nunca_karaoke.pdfIn PDF document text
    • https://cdn.sqhk.co/rilowikapaz/yJibjfz/evil_nun_scary_horror_game_adventure.pdfIn PDF document text
    • https://cdn.sqhk.co/tuseliwi/3Aqieji/45695960401.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/cfhijgQ/drift_tap_skill_forza_horizon_4.pdfIn PDF document text
    • https://cdn.sqhk.co/kufejagefep/dS7Dyih/oldies_music_70s_80s_90s.pdfIn PDF document text
    • https://cdn.sqhk.co/zupuguvawaj/UiQelqi/vopiwuwawivenulezedubofa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faberaladaruz.epizy.com/equivalent_fractions_tenths_and_hundredths_worksheets.pdfIn PDF document text
    • http://serepuzokoz.epizy.com/crysis_3_pcz.pdfIn PDF document text
    • http://neveket.epizy.com/logo_quiz_answers_level_7_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/powerpoint_template_math_design.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_off0000df90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF90 4900 bytes
SHA-256: a22782b5ae2dfcefbf87956723bb787882a4d00cd511abb6f82dbd40c9beebeb
font_01_sfnt_off0000f04c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04C 10300 bytes
SHA-256: 7f2ff39957eae539235818c2b6bca35c19e7f9184524ad31aa34f2ba7590b2a0