Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d059d3e5ae25188…

MALICIOUS

PDF

68.7 KB Created: 2021-02-13 16:02:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2c474687b5128a3577f59dafe33a6102 SHA-1: 1f0452c941a4af1e4eb26975fe75e6129b8b32d5 SHA-256: 2d059d3e5ae25188bf72b3de018107af3a3285dc8b5f104aa9045c464e47d04a
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://maypoin.ru/123?utm_term=andromeda+strain+pdf PDF link annotation
    • http://xiluzoxasefeb.iblogger.org/kidonozidebojib.pdfIn PDF document text
    • https://cdn.sqhk.co/gexedamej/VigwhhB/sago_mini_toolbox_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/sexuzoropa/bZgijVa/train_driving_simulator_free_online.pdfIn PDF document text
    • http://fosinofabeveso.22web.org/housewarming_card_templates_free.pdfIn PDF document text
    • http://wefinexof.iblogger.org/wegugeweko.pdfIn PDF document text
    • http://fabikaj.iblogger.org/relative_pronouns_worksheet_grade_5.pdfIn PDF document text
    • http://dadefuxafovub.22web.org/risk_management_report_executive_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/vujejanar/gMgsM9K/rizumodatijerumobaturij.pdfIn PDF document text
    • https://cdn.sqhk.co/gegenosuzun/NLuhfWZ/tabletop_simulator_games_for_2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ziboporo.epizy.com/bevot.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/smart_dustbin_using_arduino_project_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/kexolakufaselita.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/aws_cli_delete_cloudformation_stack.pdfIn PDF document text
    • http://mevomum.epizy.com/eternal_card_game_forge_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/bengali_language_for_pc.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_off0000d23b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD23B 5144 bytes
SHA-256: 1a4b373bd21606297a609e7626f19c24d6b6fd1e23a0efdf806de60558f17a68
font_01_sfnt_off0000e39f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE39F 10096 bytes
SHA-256: eb935332521de0f36f62b30ca8d257255712e2ed90a1aa232378ba30cf13effe