Malicious PDF — malware analysis report

Static analysis result for SHA-256 60621e0f239da90f…

MALICIOUS

PDF

64.5 KB Created: 2021-02-15 12:08:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 203d66a0957c54b10236baa4ab22b07c SHA-1: 31baf757e68eb248c3d252299b1bf49f390de9c1 SHA-256: 60621e0f239da90f85ede4b829a68536a6159995e6335b0faa4a1ebd4b1f6f91
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://druttle.ru/wb?keyword=how%20many%20ounces%20in%20a%20route%2044%20sonic%20cup PDF link annotation
    • http://astropsychology.website/latest_version_of_chrome_for_ipad16e6t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387806/normal_5fdc7b798a4d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489054/normal_5ff9ab36af597.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496372/normal_5fed1c009ad57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486041/normal_5fdd9e0c15799.pdfIn PDF document text
    • http://fovazewo.iblogger.org/jisazogutotoxedi.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/latest_version_of_instagram_for_androida2703.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456165/normal_5fee717521c75.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/wixanarer/27284752077.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/buku_agama_buddha_kelas_11.pdfIn PDF document text
    • http://vufagozujidivu.epizy.com/zimanusazedinule.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/39573272905.pdfIn PDF document text
    • http://xawosote.epizy.com/android_phone_3000_rs.pdfIn PDF document text
    • http://refufigatuzar.epizy.com/9431449323.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/pipironalejog.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_off0000bcd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCD5 5288 bytes
SHA-256: 727f2368acbbc4c4d16468aaf7b4cb2f7fa8d859a79ac41519aca44900a23db2
font_01_sfnt_off0000ced4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED4 11164 bytes
SHA-256: fb6f0faadd134e5c38fe5930e22597bbafe076c12ad41305cfeb1c71bb3e9088