Malicious PDF — malware analysis report

Static analysis result for SHA-256 b035c995abf72b65…

MALICIOUS

PDF

81.2 KB Created: 2021-02-26 02:22:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ec173db7ae4a410cd44b69671474f422 SHA-1: d6d4a25367829b725f62cf87fe7a0fc6ebc84bf7 SHA-256: b035c995abf72b658aefa97246eca4a9fa1346ac404a3c0aca4c67ac8401f771
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to search queries.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/strik?utm_term=is+dean+koontz+good PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393204/normal_60305b696ce14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495402/normal_601e08d90b1aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408878/normal_5fc865c5289ec.pdfIn PDF document text
    • http://pasikufopubiwo.mypressonline.com/jetuk.pdfIn PDF document text
    • http://good-production11.site/canon_eos_rebel_xsi_user_manualvsy42.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/latawukefisewi.pdfIn PDF document text
    • http://vanimerukaguto.scienceontheweb.net/neil_degrasse_tyson_quotes_the_universe_crossword.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/jojitagifuva/durizezusekitapogegata.pdfIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/noxativekejikide.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/finding_equations_of_perpendicular_lines_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/real_estate_investment_analysis_report_template.pdfIn PDF document text
    • http://nimunofat.epizy.com/27588725826.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/common_core_math_4th_grade_division_worksheets.pdfIn PDF document text
    • http://zoniguzetixan.epizy.com/business_english_video_lessons_free.pdfIn PDF document text
    • http://jokosen.atwebpages.com/5638522036.pdfIn PDF document text
    • http://wuxekijonudi.epizy.com/98712096168.pdfIn PDF document text
    • http://fevoreselo.epizy.com/assassin_s_creed_1_pc_game_compressed.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/22687476303.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/delete_google_app_search_history_android.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000104e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104E7 4916 bytes
SHA-256: ede248f49173d653c2be0e18cbef87aa6b00743a2c1b74cd7057338c8ed228d3
font_01_sfnt_off000115c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115C3 9952 bytes
SHA-256: d12457260cec1d5815573d5cab825456a6f5b3ba1a6c42ef5035416ebc6588a9

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