Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6300d6f72a63e58…

MALICIOUS

PDF

72.3 KB Created: 2021-02-21 03:24:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e8ba10e055f402ef473f51b085d036d1 SHA-1: 41f76e3c3d1c6e29f7aad45e038f83191d57d6ef SHA-256: d6300d6f72a63e589242cc5728f7b5aba221fbec23d0059df2652d25d6b9fe27
136 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
  • 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://baarspo.ru/wb?keyword=what%20is%20the%20best%20keto%20cookbook%20to%20buy PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365655/normal_603193d0bea28.pdfIn PDF document text
    • https://cdn.sqhk.co/bulegumu/cRghdhi/history_of_roman_empire_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/lukisebeka/hfZgggj/navneet_samarpan_online_subscription.pdfIn PDF document text
    • https://cdn.sqhk.co/potiribuwuf/nsrEgi6/black_hole_live_wallpaper_for_windows_7.pdfIn PDF document text
    • https://cdn.sqhk.co/fijajiles/ijjd6o4/kumulezovulaji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368469/normal_5fdca68c3326a.pdfIn PDF document text
    • https://cdn.sqhk.co/xokebuzizo/jighgd8/bomber_friends_hack_ios_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405420/normal_5fecf49e31a8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382779/normal_5fe9d148a17d4.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/4djCz8y/zeboleruf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479222/normal_5fdcb42b3df89.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/fekife/duzanurufivegelajinopiw.pdfIn PDF document text
    • http://pivirujifija.epizy.com/bittorrent_free_for_apple_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/wamujalezatewuvu.pdfIn PDF document text
    • http://wupotolirenenar.epizy.com/jaxedurekiv.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_off0000df53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF53 5076 bytes
SHA-256: f4aa3be9dac9a5d298eb738492f50f2876ed6530629bd5d99bc6cfeeae356b50
font_01_sfnt_off0000f0b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B2 10388 bytes
SHA-256: ac8b3de0978c0b5a62f13539361c32bbd05ce898b1f8f335c65fe91b1506130a