Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e36cf4f7e3eb60e…

MALICIOUS

PDF

71.6 KB Created: 2021-02-25 10:19:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a65ba422061969d8268f142eac56ad99 SHA-1: 2fe4f25c7b41380fb48651e15cec611bd776c53d SHA-256: 7e36cf4f7e3eb60e0fc1bb674ebbda999dc1e4273c788b71c5659926702480c9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/award?keyword=kenmore+elite+he3t+washer+model+number PDF link annotation
    • https://cdn.sqhk.co/kupulifip/BFjehiE/72217420402.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449630/normal_602c202f6a85b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420468/normal_602d83d197bc3.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/cQhfLpf/rip_math_education_and_learning_death_funerals_module.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367273/normal_600380e7e9285.pdfIn PDF document text
    • https://cdn.sqhk.co/jasurisunav/igijbjj/74789116453.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470836/normal_5fde8a31578ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426261/normal_5fd1803962be4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405206/normal_6010cf4af3097.pdfIn PDF document text
    • https://cdn.sqhk.co/dufelogaruf/4pLjSbL/summit_trail_climber_ht_reviews.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386848/normal_6005ca81b879a.pdfIn PDF document text
    • https://cdn.sqhk.co/ravuviwidi/bgVZqP0/15749322680.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464056/normal_602b86af5c240.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/jenisozazewubo/new_bangla_album_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/51692802274.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/98492771992.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/3._5_demilich_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/click_clock_wood_notes_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/tamil_english_dictionary_app_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/armed_forces_pension_forecast_form_12.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_off0000db77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB77 5432 bytes
SHA-256: 1f6aa0ebc7b06f1ad7e55287d2b5e80c1429fd668ccc1c456176492e6faa1b49
font_01_sfnt_off0000edd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD0 10264 bytes
SHA-256: f4973f061c27a96600c8c26aca4964726632275524e11b05a78af2bb3100002b

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