Malicious PDF — malware analysis report

Static analysis result for SHA-256 eedd999347ebcfa5…

MALICIOUS

PDF

70.8 KB Created: 2021-02-20 10:45:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cfad51c927bf2ef581cd63c6617e3d59 SHA-1: b3bbff6047311cbebc24e34880ce32ec1543d339 SHA-256: eedd999347ebcfa5d7529d936ec56dcf829503709d1613e25c747907fc822629
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://yafferge.ru/wix?keyword=effing+worms+unblocked+key+hacks In PDF document text
    • https://cdn.sqhk.co/xopuwatipo/9Zghhi8/ivory_paint_color_benjamin_moore.pdfIn PDF document text
    • https://cdn.sqhk.co/nezerozara/ibvgcha/29452918535.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482869/normal_5ff3fd1f41c34.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384164/normal_5fffb3899f644.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406514/normal_6011ee13b4168.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402951/normal_6010e18a8ad93.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/jPhiaig/hero_xtreme_200s_top_speed.pdfIn PDF document text
    • http://shishkin-seed.xyz/xbox_series_x_restock_date_target92la5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393035/normal_5ffdb9657021c.pdfIn PDF document text
    • http://timecodes.net/91469883911eyzo6.pdfIn PDF document text
    • http://auto-agents.space/chronicles_of_narnia_movies_in_orderm29ja.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478133/normal_5fcd522e376a1.pdfIn PDF document text
    • https://cdn.sqhk.co/zapimafe/dghhcif/rally_car_crashes_into_house.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_off0000d7db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7DB 5792 bytes
SHA-256: db0aa9b61200eb66dab871755ce86138ce974711e8dd48b08362d3e0fd2d52b9
font_01_sfnt_off0000eb8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8D 10280 bytes
SHA-256: 62b551746e84d4d9437c79e7c41cc2b899479987113a8df226526b4b0bd14bff