Malicious PDF — malware analysis report

Static analysis result for SHA-256 47bb338f512be9b6…

MALICIOUS

PDF

77.6 KB Created: 2021-02-03 08:37:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: daf287cfd6fb669427a431e0d0c199e0 SHA-1: e41c2167f17bd634f5786c7965a6c6f1932ac0b8 SHA-256: 47bb338f512be9b61aebbb1b5831e297e7c49d2bc25781efef5b2d7a78d20290
144 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/aws?utm_term=crystal+reports+2016+trial+product+key PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4393197/normal_6004809beec8e.pdfIn PDF document text
    • http://maddot.space/apprendre_portugais_prononciationrwre6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503533/normal_5ff46c945f2db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412778/normal_5fcb94b11793a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479678/normal_5fcbd9b9cde81.pdfIn PDF document text
    • http://halfraire.xyz/wild_card_series_mlb_2020_standingse3ttv.pdfIn PDF document text
    • https://cdn.sqhk.co/rifusofuwedi/jg2jeib/flip_or_flop_season_9.pdfIn PDF document text
    • http://pubggaming.online/multiplayer_in_city_racing_3dbymhl.pdfIn PDF document text
    • http://insurancesouk.com/88637811314eamyk.pdfIn PDF document text
    • http://kino-vezde.ru/youtube_offline_video_downloader_for_android6abfy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476282/normal_5fd0583a9a75c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366664/normal_5fdc15af083b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410674/normal_6002c84e004f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369507/normal_5fffcb8787ef9.pdfIn PDF document text
    • https://cdn.sqhk.co/baxotonad/dih1gg1/rocket_royale_game_online.pdfIn PDF document text
    • http://bobr.space/local_tour_guide_in_phuket24elb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403537/normal_601976484cf6c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477916/normal_5fcaeec0a1430.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_off0000f10c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10C 5620 bytes
SHA-256: 7f069759b88afb8a563d296539b25d720c12f13e63de1de553ad87e15e0e5ab2
font_01_sfnt_off00010441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10441 10948 bytes
SHA-256: dea7a000f125c12035784638747b6996bfafcc750017fe1daa5626026ac5e134