Malicious PDF — malware analysis report

Static analysis result for SHA-256 b15341b9ad2feac0…

MALICIOUS

PDF

72.7 KB Created: 2021-03-04 03:49:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e82b7c82bcf67484caa9ac63f456fe16 SHA-1: ecae39d7368600071945b0f15ad8d9b5452a4487 SHA-256: b15341b9ad2feac08cf243f9ca5b5c95fcf7cf33450e57b84b61f5a4c7451e23
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://gimoguvi.ru/award?keyword=fairy+tail+en+fran%25C3%25A7ais+saison+7 PDF link annotation
    • http://subagibetuvipi.iblogger.org/amar_chitra_katha_stories.pdfIn PDF document text
    • http://gejedesoni.getenjoyment.net/best_investment_trusts_for_income_2021.pdfIn PDF document text
    • http://dekiweragaf.mywebcommunity.org/63293289853.pdfIn PDF document text
    • https://cdn.sqhk.co/jejefudebuxi/fMOzUrw/wemagekepikaroxirulipa.pdfIn PDF document text
    • http://simopuvoramawu.mywebcommunity.org/22280791190.pdfIn PDF document text
    • http://faripofijukevom.mywebcommunity.org/13070031943.pdfIn PDF document text
    • https://cdn.sqhk.co/pozedezupase/ih0hcgf/dual_universe_beta_date.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/badodemebo/dialectical_behaviour_therapy_techniques.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/veg_dinner_recipes_indian_list.pdfIn PDF document text
    • http://wonanikapudidak.atwebpages.com/pidinajupagil.pdfIn PDF document text
    • http://nerifumufuzu.epizy.com/what_are_some_good_ly_words.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/fukupamijekuvemagan.pdfIn PDF document text
    • http://nekeromufuribel.rf.gd/supavi.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/vipafutofusiparaxiz.pdfIn PDF document text
    • http://biwovake.rf.gd/video_editor_app_for_android_phone.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_off0000de1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1A 5080 bytes
SHA-256: e302de5cf0c09581ca9b265a0db26a93cdf56640ee4a9283ec5deea27e8f70a8
font_01_sfnt_off0000ef8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8A 11820 bytes
SHA-256: 0d38051062dfdf4b6fef5127b4b9e97915429720be73a897bcce6b978d4be9b6