Malicious PDF — malware analysis report

Static analysis result for SHA-256 366db659ccf32a2f…

MALICIOUS

PDF

70.2 KB Created: 2021-02-18 17:02:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cc794e2a71a28ec4af83d35ecd0cbaa6 SHA-1: 11f88a1e7cb4a154eaa9ec3027ec68c9288904eb SHA-256: 366db659ccf32a2f99a93d1239689b6dd3fad7987c682bef3d69063b836b52cd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=whirlpool+duet+washer+manual+error+codes PDF link annotation
    • http://successinyourlif.website/12492690628jj5cj.pdfIn PDF document text
    • https://pabebubi.weebly.com/uploads/1/3/2/6/132695301/fezoduvolebe.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwozavenu/jyhfBih/basketball_anime_shows_on_netflix.pdfIn PDF document text
    • https://dufubixapitosig.weebly.com/uploads/1/3/4/5/134503348/bovove.pdfIn PDF document text
    • https://cdn.sqhk.co/bifoligi/fjhih8p/road_travel_planner_australia.pdfIn PDF document text
    • http://usacreditreport.info/what_is_interesting_about_intellectual_property_lawaaocy.pdfIn PDF document text
    • http://confirmationhelpcenter.com/vemekipubomuxijodixiwk75p.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/bOhc2ij/greenland_movie_available_to_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/nizekidido/02jegiu/perfect_soccer_prediction_tips.pdfIn PDF document text
    • http://zezitil.22web.org/a5_envelope_size_guide.pdfIn PDF document text
    • http://vudujupuboneg.22web.org/pennywise_laugh_ringtone.pdfIn PDF document text
    • https://zaxifugerabapaz.weebly.com/uploads/1/3/1/0/131071175/fuzomusonokavu.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/kudefem/chit_chatting_formal.pdfIn PDF document text
    • http://bojibag.epizy.com/hawks_nest_weather_report.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_off0000d751.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD751 5420 bytes
SHA-256: 16779d77d097393b3283de79da56232a50513a94277abf6f46b84003baa72f8a
font_01_sfnt_off0000e9a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A4 10100 bytes
SHA-256: f0231ed778e6dcbf4d495641953fcf13a263d64492e2e99152a9d28bba2dc694