Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a021852260b5d6…

MALICIOUS

PDF

71.7 KB Created: 2021-02-26 17:15:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9fe47a9831ee577d29d6d2b5866e4152 SHA-1: 20c41a69eb01b1210cc24799be2f899f329814ff SHA-256: 22a021852260b5d6a1c6b473ea2885b0e2bff15cdccdffeabad15fa5a24ae67d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/award?keyword=dell+precision+m4700+webcam+driver PDF link annotation
    • http://ru-payment.casa/the_creature_from_jekyll_island_chapter_summaryomqw2.pdfIn PDF document text
    • https://cdn.sqhk.co/lilomovetum/gh1gjou/axis_360_camera_view.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452161/normal_602e330684715.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465556/normal_5fcb9c5bc8865.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481831/normal_602e303a114bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366348/normal_5ffa067088766.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475864/normal_5fdaa8d00e591.pdfIn PDF document text
    • http://itnegozio.info/zoom_h4n_pro_vs_tascam_dr-40xfwvmb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464303/normal_5fc71d3451724.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375195/normal_602ae42f45925.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484612/normal_6005cedd444a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374953/normal_5fcbe3119505b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423452/normal_5fd7d81528131.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380692/normal_6025c103a1d95.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500432/normal_5fdff4947593b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379846/normal_601bb6ed3ac00.pdfIn PDF document text
    • http://semengergel.ru/code_premium_robocraftqc6gl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE7 5820 bytes
SHA-256: d6ec82956947db02f821d220cc38e6bc91902a943233993e49418be9d5a0a5e6
font_01_sfnt_off0000eebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBF 10200 bytes
SHA-256: d0c3e91ed005a23e684fb2622980e9503c2c81c26130110eca1bd0ab397b2fa9