Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdc03811278caa71…

MALICIOUS

PDF

73.9 KB Created: 2021-02-28 14:41:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bde7bf8881fd4bb1c37e152e98736445 SHA-1: e0c2faeb390054e8bc112a408cb1f9abe3bd5321 SHA-256: bdc03811278caa710d196c33fc1f82bc8543012f088be8a616288b06b933d2b8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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 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://midufefew.ru/123?utm_term=snap+on+mt2500+scanner+manual+pdf+espa%25C3%25B1ol PDF link annotation
    • http://tafuxasomup.getenjoyment.net/bemipojobaj.pdfIn PDF document text
    • http://zikewexer.scienceontheweb.net/how_to_reset_honeywell_thermostat_th8321r1001.pdfIn PDF document text
    • http://gakukuketisalum.scienceontheweb.net/everstart_multi-function_jump_starter__battery_charger_manual.pdfIn PDF document text
    • http://pupezawat.scienceontheweb.net/what_type_of_government_system_does_the_soviet_union_have.pdfIn PDF document text
    • https://cdn.sqhk.co/rasidepad/HgfxRQD/julidizu.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/7miadPw/deluxe_nails_and_spa_texas_sage_trail.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/juzonatabulutenok.pdfIn PDF document text
    • http://wusuraxirobi.iblogger.org/briggs_and_stratton_500e_oil_type.pdfIn PDF document text
    • http://bipamujiwi.iblogger.org/healthy_food_serving_size_guide.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/30962296887.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tefosotolubexob.rf.gd/lesixitupedunediwelom.pdfIn PDF document text
    • http://vejegaba.atwebpages.com/financial_modelling_excel_vba.pdfIn PDF document text
    • http://dopovis.myartsonline.com/current_issues_in_environmental_ethics.pdfIn PDF document text
    • http://sabixukavizom.myartsonline.com/average_cost_of_a_stress_echocardiogram.pdfIn PDF document text
    • http://rawigukegopafot.onlinewebshop.net/selututigej.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_off0000debb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEBB 6012 bytes
SHA-256: 23f605a6ab4164202ece65e1ee657e6837d158cf0070717c5b183a4d868db30d
font_01_sfnt_off0000f2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E3 11000 bytes
SHA-256: 511fb89511aa9dc0ea5bbf402d44f02d17a61cdbb2cb71d667bc8b8047a9d0c4