Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c6e4e6df21a2c16…

MALICIOUS

PDF

75.9 KB Created: 2021-02-07 17:50:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: db43a614b3faa3496b87b05096ed692b SHA-1: 48d32fe6573b6deed92f048262be2d538259bae4 SHA-256: 2c6e4e6df21a2c16c7010d144faa2a333aacef752ad8809e1da2c18a0bacf517
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample was flagged by a machine learning classifier and ClamAV as malicious. The 'SE_PAYMENT_REDIRECT_LURE' heuristic indicates the document attempts to trick users with financial lures. The embedded URL 'https://seumenha.ru/wb?keyword=ac%20market%202019%20%20for%20pc' likely serves as a redirect to a phishing page. No scripts were extracted, but the PDF structure and heuristics strongly suggest a phishing attempt.

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://seumenha.ru/wb?keyword=ac%20market%202019%20%20for%20pc PDF link annotation
    • http://finansi-7.online/dining_room_sets_cheap_free_shippingw8ra2.pdfIn PDF document text
    • http://savadaqwe.space/video_wallpaper_free_for_windows_7bw1uc.pdfIn PDF document text
    • http://xidotamasaw.22web.org/derivative_power_rule_practice_worksheet.pdfIn PDF document text
    • http://kpovli.ru/22241504333bbsm0.pdfIn PDF document text
    • http://enots.space/daily_planner_online_iphone7bzr7.pdfIn PDF document text
    • http://1xbets-reg.site/livro_o_neoliberalismo_histria_e_implicaes85hi3.pdfIn PDF document text
    • http://1fps.ru/wave_chart_jobimty4su.pdfIn PDF document text
    • http://look-hotel.com/72490670099k3rr9.pdfIn PDF document text
    • http://cheatyou.site/61490842910oydhr.pdfIn PDF document text
    • http://mbfsopg.com/84024161001zsyhf.pdfIn PDF document text
    • http://shopyou.online/dual_monitor_stand_for_desk_office_depotfhe66.pdfIn PDF document text
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/46331299439174h0.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/kisimujuk/jira_cloud_release_notes_template.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/12411633706.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/ibps_po_approximation_questions.pdfIn PDF document text
    • http://vekamujibatebig.rf.gd/tegojixapoxafifef.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/financial_report_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/enthralling_performance_bard.pdfIn PDF document text
    • http://rorewoj.rf.gd/77682229215.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_off0000e80a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE80A 5484 bytes
SHA-256: 5c3bdf9df116847c591b527552283c8673996ab0885e651cbe56798b52c3fdac
font_01_sfnt_off0000faa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA7 12088 bytes
SHA-256: 38decf96e6a9a112922bde9baeab32b8991098603ab87a423d9ffaa684409f17

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