Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b362548db4128a7…

MALICIOUS

PDF

87.5 KB Created: 2021-01-29 03:40:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ad4289b992db44b0e2a89570274d06e3 SHA-1: 8184ed5f74ccdfae22db686f9bb12bf3f246804d SHA-256: 7b362548db4128a7286730b2d891d45652142825c03d139cde4d32534d6f2909
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://maypoin.ru/aws?utm_term=santander%2528+former+abbey+national+plc%2529 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4482625/normal_5feb16ce586f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444649/normal_5fe0d1bc39783.pdfIn PDF document text
    • http://mon-fortuneo.best/harbor_pilot_salary_floridasaiaf.pdfIn PDF document text
    • http://premiumpornclips.com/lomazilijedusamutusopatybkp5.pdfIn PDF document text
    • http://khareedforosh.com/disco_ball_zoom_background_free147fj.pdfIn PDF document text
    • http://1xbets-reg.site/astm_e860c3m30.pdfIn PDF document text
    • http://airbin.top/digital_ampere_meter_connection_diagram8iyar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408187/normal_5feb61cb05c9b.pdfIn PDF document text
    • http://card2card.live/download_game_shadow_legend_stickman_revenge_mod_apk5i5zo.pdfIn PDF document text
    • http://belkwigs.com/compound_adjectives_exercises_worksheets4kh7g.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/iiBEhh6/candy_crush_friends_saga_apk.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/pozokimepe/video_call_recorder_skype_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/virotutikozi.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/ultimate_spider_man_movie_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/73865062235.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_off000116ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116AC 5624 bytes
SHA-256: d5b372080bc0aea8e1cc2c518d7e305c84d71145b40e2a7d7553490dc1d67063
font_01_sfnt_off000129c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129C9 11744 bytes
SHA-256: 7cfe9703d8e9495199703eb9798946a068b5e2d9135f70e82faa28c940c86eb3