Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e0e6a02df61659…

MALICIOUS

PDF

72.6 KB Created: 2021-03-07 02:40:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0bd8ae100770e300111b659b052e125b SHA-1: aa3dee5705e55ce75a69911f94e3ffe6644f3bf2 SHA-256: 87e0e6a02df61659a5239ac2f4bf6f063aaef4af0273b3a0b60979a72c771ac5
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://jottigo.ru/award?keyword=the+land+of+stories+the+wishing+spell+reading+level PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384030/normal_603deffee1970.pdfIn PDF document text
    • https://pukefigagarit.weebly.com/uploads/1/3/1/4/131406744/vebeb_kunirowidixapug_zonufawosafo_kulumurim.pdfIn PDF document text
    • https://lukawonudos.weebly.com/uploads/1/3/5/3/135320707/c122230d6811e0e.pdfIn PDF document text
    • https://cdn.sqhk.co/doporaba/dhdjjhq/game_pill_toronto.pdfIn PDF document text
    • https://cdn.sqhk.co/tibapopedeka/fjcijYM/bike_unchained_2_hacks.pdfIn PDF document text
    • https://cdn.sqhk.co/sativomofij/6pQ2Wij/castle_tycoon_games.pdfIn PDF document text
    • https://kunoloxudiruk.weebly.com/uploads/1/3/4/7/134767428/tixubumifidorig-gegeb-sodulosufuragow-wixevimaju.pdfIn PDF document text
    • https://cdn.sqhk.co/wisaputal/ffQ9iih/durexuxug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368969/normal_600f1edd59646.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/salade/gymnopedie_erik_satie_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc3fe41d-ce6c-4745-808d-ae898e7d33ed/71445205254.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cb54b77-d77e-4fda-9b60-08d96033bb1a/36926799641.pdfIn PDF document text
    • http://xesijapapun.rf.gd/kugujiso.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/56665484688.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b484991b-90f7-43f4-8b14-1f9744f2796f/4549041564.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/sort_excel_spreadsheet_by_fill_color.pdfIn PDF document text
    • http://gebuzabode.epizy.com/vodoza.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/67334177696.pdfIn PDF document text
    • http://pudubekij.epizy.com/how_to_connect_canon_mg3520_to_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/feseg.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_off0000de78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE78 5404 bytes
SHA-256: 94afe192d1cf293d441be0ec5c5c671825e6e6bdde3acf102d7ce5fb10d78594
font_01_sfnt_off0000f0ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EE 10480 bytes
SHA-256: 32059291779d3eddf39ee05fc8c764ffba6d5c424d0dca7347b79becb8a6dfca

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