Malicious PDF — malware analysis report

Static analysis result for SHA-256 e89e149795b3515e…

MALICIOUS

PDF

83.9 KB Created: 2021-02-15 14:49:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7f587d2c92c821e0c133a151fbfdf6db SHA-1: 6a2953a10ae3410c8718f7a8c96377ae6e14afcc SHA-256: e89e149795b3515ecd8e8ab7d1aaab10ebb755c0db0094a00bc23dd9386fe036
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://druttle.ru/123?utm_term=cloud+atlas+book+reincarnation+characters PDF link annotation
    • https://cdn.sqhk.co/nerenina/SAJajg8/nujasuwunuv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418968/normal_5fd9c01eda87f.pdfIn PDF document text
    • https://cdn.sqhk.co/dojerilu/3TicihP/26244174421.pdfIn PDF document text
    • https://cdn.sqhk.co/dewavasese/a0fAeKl/39472640700.pdfIn PDF document text
    • https://cdn.sqhk.co/posebozej/ia88Cgj/38617773380.pdfIn PDF document text
    • https://cdn.sqhk.co/lilavokolet/737KgXy/51133671567.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_5fd8b2dfc0d39.pdfIn PDF document text
    • https://cdn.sqhk.co/tumosirewuw/GZhmZig/kexapur.pdfIn PDF document text
    • http://dudipoviju.22web.org/31008289366.pdfIn PDF document text
    • https://cdn.sqhk.co/nokotadi/2qVdgiA/account_balance_prank_voice.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/Vhfiggh/71143658858.pdfIn PDF document text
    • https://cdn.sqhk.co/pufojoloz/hbyjije/plants_ball_volume_5_ball_adventure_gamecube_iso.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/gefob.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/opera_mini_browser_software.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/92939828638.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_off00010cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CB0 5136 bytes
SHA-256: b7d600a2d469bd974a9fbd89f99eaab04866faef5ba6544a339da75a7d3f54cb
font_01_sfnt_off00011e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E17 10800 bytes
SHA-256: 40626a6d0098d974558a56a39b1785bc11f09510c0bf1834303688a62905a096