Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed6e7be44f50a985…

MALICIOUS

PDF

71.2 KB Created: 2021-02-18 02:01:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c1cf486bb92fd820a1a234e6ca3315f9 SHA-1: bbee614bcd5f73954acd7cf2749085738081eb7a SHA-256: ed6e7be44f50a985310782bd9091553a3b1171d92632b312707c2ad9dba077b7
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=finley+school+district+jobs In PDF document text
    • http://copyrightsafetyhelps.com/29092698379raltb.pdfIn PDF document text
    • https://cdn.sqhk.co/paleguvebo/gcjgijH/30923638602.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409103/normal_6003888835d49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453902/normal_5fdc2d5ee7a6d.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/hgjbGHA/snake_and_ladder_board_game_online.pdfIn PDF document text
    • http://albl.ru/fearless_friday_4a_football_scoresy4xjm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463825/normal_5fe7aece5d697.pdfIn PDF document text
    • http://circulyarkadigital.xyz/57716835357m6tfk.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/jbieha1/galaxy_guardian_space_shooter_gift_code.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dezajok/coloring_english_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/61706830882.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/23987029590.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/vilafogepopokin.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/gorebejo.pdfIn PDF document text
    • http://lirufuti.epizy.com/98979953964.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/14750834451.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/53234133594.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/45250490438.pdfIn PDF document text
    • http://baniteb.epizy.com/fowavizulopivevefawem.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/205831006.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/13206401847.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE54 4876 bytes
SHA-256: 2874e9f5d6b5fbec21aefe845e94e940954c2aa6751817a404124aaf3afdd8e5
font_01_sfnt_off0000dede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEDE 10036 bytes
SHA-256: f7e9079f72ca9bb116f1a6d542d88ecf04f44a4b43eac5c3d27edf00b2e2b68f
font_02_sfnt_off00010115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10115 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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