Malicious PDF — malware analysis report

Static analysis result for SHA-256 57466c50c760c20e…

MALICIOUS

PDF

71.9 KB Created: 2021-03-03 23:06:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c344feccfdc20029fdc6d2e29abccde8 SHA-1: affaf0f901b0a450dd32cc5a3250c7081b7c07b3 SHA-256: 57466c50c760c20e49aeb43867a2c4b34618b7da8c18750cb3bc65cea23f4498
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=theme+hotel+hacked+online+games PDF link annotation
    • https://cdn.sqhk.co/binebelezux/jjkCida/wrecking_ball_miley_cyrus_mp3_song_free_download.pdfIn PDF document text
    • https://tupokigefadewun.weebly.com/uploads/1/3/4/7/134702618/kawipixugukajafopug.pdfIn PDF document text
    • https://cdn.sqhk.co/pakebisas/29VUih6/galaxy_note_wallpaper_hd_download.pdfIn PDF document text
    • https://cdn.sqhk.co/ribafesupuro/XkPjgge/59173665241.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393644/normal_6029349c2d869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367283/normal_5fda1ca5acc92.pdfIn PDF document text
    • https://cdn.sqhk.co/zidenesek/3K8PDje/formula_unlimited_racing_mod_apk.pdfIn PDF document text
    • https://seronenufides.weebly.com/uploads/1/3/1/4/131407086/2267725.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwipabobatu/ijCihgc/minecraft_launcher_apk_1._15.pdfIn PDF document text
    • https://dijamolilum.weebly.com/uploads/1/3/5/3/135347404/6656632.pdfIn PDF document text
    • https://cdn.sqhk.co/voduzetefir/Nigifih/falling_dominoes_game_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/mekerijiwuv/iggZDib/sonese.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/jbHzLtR/nhl_21_xbox_one_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/vabadoma/hSygdia/beyblade_burst_app_mod_apk_8._1.pdfIn PDF document text
    • https://cdn.sqhk.co/xeposetuge/sibiggu/soccer_star_world_cup_2018_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/gjXYhhH/latepozegoxu.pdfIn PDF document text
    • https://cdn.sqhk.co/dafagupovo/k6iigiy/huey_lewis_and_the_news_greatest_hits_album.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/jolunenafobuw/what_is_a_panamax_ship.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/2971710609.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/mikexusoluzi.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_off0000dee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE5 5268 bytes
SHA-256: d5871c908eca01ea0f7fddb4b688d6226185066f7360715a7d5c32dff5a15812
font_01_sfnt_off0000f0aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AA 9940 bytes
SHA-256: cd568c29a5cb4ac348a2dd54eb7f6a38beed7123080e2ba465f43b4245c10adc

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