Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d018193e5946cfd…

MALICIOUS

PDF

69.5 KB Created: 2021-01-29 04:37:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 326c4a40c84e029873712b4b11d3e2bf SHA-1: da31507d9336e78cfed69111e7fbe630a5735ab9 SHA-256: 3d018193e5946cfda095434781e3f39e7dd869d2bd8dc3e77da3d38c457ead2a
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/aws?utm_term=heart+failure+clinical+practice+guidelines+canada PDF link annotation
    • https://cdn.sqhk.co/kewexezaviz/5jcAkAF/62632851395.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499283/normal_5fd2f2a01feba.pdfIn PDF document text
    • https://cdn.sqhk.co/jisogixij/ifTjj85/rofejufaxagutozene.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/jHhcjh2/38705853047.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410954/normal_60047dd59b6fe.pdfIn PDF document text
    • https://cdn.sqhk.co/gawagunikuw/hb9vjjJ/73672753118.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/jbjhvgj/4869432311.pdfIn PDF document text
    • https://cdn.sqhk.co/fimirexuf/hfhiSgh/all_video_downloader_for_tiktok_without_watermark.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/bljd5Hv/xizugaxetad.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/fumiposamisur/naqaab_bengali_movie_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/linokiganinogifipumadewe.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/44504993906.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/spreadsheet_app_free_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/veraf.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/candy_crush_jelly_saga_apkpure.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_off0000d23e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD23E 5284 bytes
SHA-256: 86c6dce4d6ac40146fb2c2a7817cbc7f85d1bf88c16862d6aee5f8977a90ffd3
font_01_sfnt_off0000e446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE446 10824 bytes
SHA-256: c15d38f54ef8d48366ca7615964ee279b4d7c0b0c70b829bf0f718cfe52b39a5