Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84f064613128611…

MALICIOUS

PDF

70.5 KB Created: 2021-02-21 13:51:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 21a4986a5c50164283513f41490761af SHA-1: 8f9a5f16fe3ab887b8be3bc8ec9dc95b5dc2d60e SHA-256: f84f0646131286111f34eb2bcd4607c311a4705c68a40e4df567339284bc5ef1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/wix?keyword=baixe+aqui+jogos PDF link annotation
    • https://cdn.sqhk.co/wadupaxi/IkijHjj/27050166867.pdfIn PDF document text
    • https://cdn.sqhk.co/kopilixa/i6jjjgo/flower_art_paintings_name.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/UBjcia8/97227681216.pdfIn PDF document text
    • https://cdn.sqhk.co/keximovib/jigegcq/fegexarujekisomilo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380867/normal_60167cca0c6f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5fd76eeba820d.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/jccJG8c/rimiz.pdfIn PDF document text
    • https://cdn.sqhk.co/padekopa/jcjcYii/motorcycles_for_sale_near_me_facebook.pdfIn PDF document text
    • https://cdn.sqhk.co/sexuzoropa/jehb8he/pogivekilebo.pdfIn PDF document text
    • https://cdn.sqhk.co/toledexipez/iczhJhf/real_followers_for_instagram_free_app.pdfIn PDF document text
    • https://cdn.sqhk.co/lexoxuxoluvi/0MhaOUM/pizza_snack_margherita_aldi.pdfIn PDF document text
    • https://cdn.sqhk.co/jixuvepabu/jdjaoha/yellowstone_season_4_filming_in_montana.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422877/normal_5fe157457b4da.pdfIn PDF document text
    • https://cdn.sqhk.co/zamodozitip/SigOy28/3g_video_call_android_phone.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dubexejevobogi.rf.gd/xomip.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/aviva_index_linked_gilt_fund_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/zarebaxi.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/80899937613.pdfIn PDF document text
    • http://pajamenu.rf.gd/51340468330.pdfIn PDF document text
    • http://tinijev.epizy.com/weather_report_east_coast_storm.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/sixamo.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_off0000cc8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC8C 5044 bytes
SHA-256: 51af3e3573d4676b7e1193b4fe2a579f8949b9ef21cd4fcc7b79fd5927342dba
font_01_sfnt_off0000ddd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD8 15996 bytes
SHA-256: 817305d5074b67d21b6aeefaa8171b8b52f51219f59e3082061852af64b22985

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