Malicious PDF — malware analysis report

Static analysis result for SHA-256 20abf2c8082233ff…

MALICIOUS

PDF

73.0 KB Created: 2021-02-09 11:54:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7b02b4ce8bf0afc3eceff0954a683505 SHA-1: ac821e0c1badd506cb7bb7aacb62e8026301c836 SHA-256: 20abf2c8082233ff609790b2721eeb012aaf1df08c5df17aacbfbbf53f9264ac
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://seumenha.ru/wb?keyword=amplificateur%20de%20brillance%20pdf PDF link annotation
    • https://cdn.sqhk.co/konumapedowe/1PhIGjc/hot_rod_movie_2007_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/mofekuma/ghtA0hi/slime_rpg_2_2d_pixel_dungeon_tips.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370540/normal_5fdc81cecefcc.pdfIn PDF document text
    • http://cuzinfo.ru/49591258208pe2md.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393925/normal_60045f585b58c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367287/normal_5fee8eeeda52c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393180/normal_5fe4ead61e1fd.pdfIn PDF document text
    • http://leree4.club/98795093621b9eov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374542/normal_6002bac40418f.pdfIn PDF document text
    • https://cdn.sqhk.co/xakutofi/gxVgcij/gegesajasopojowele.pdfIn PDF document text
    • https://cdn.sqhk.co/xesagomi/Siiidhh/36537319962.pdfIn PDF document text
    • http://kino-vezde.ru/zetevudovhzdp3.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/bezorito/behringer_umc404hd_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/jakufamijawer.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/budget_excel_template_free.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_off0000dde0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE0 5252 bytes
SHA-256: b9a1e52192731ad1b4d589bd133a76098fb1836fcdadaa3b2f73f36316550b45
font_01_sfnt_off0000efa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA4 11912 bytes
SHA-256: e5b43a4ab6ad84d888b93ee940d7b8120d6a4cb7aed74e69886097a8cc1ff847