Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25e40db5ef69ff5…

MALICIOUS

PDF

65.9 KB Created: 2021-02-27 12:29:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fd5f03f55e34bf5212fcc0edc8963044 SHA-1: 2cbde48f9a825d9b90f636d447889f1918a8e645 SHA-256: e25e40db5ef69ff5d9caae22c091b0129130c7f871cb5287f2857d9c04795877
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/wix?keyword=mitosis+worksheet+answer+key+how+do+living+things+grow+and+repair+themselves PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480399/normal_6023d77b5e217.pdfIn PDF document text
    • https://wufomuwu.weebly.com/uploads/1/3/0/9/130969972/vedusejador_tomijipane_witofanuwuv.pdfIn PDF document text
    • http://baderezu.scienceontheweb.net/the_vegetarian_butcher_stock.pdfIn PDF document text
    • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/32042.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489724/normal_5ff1d23ee3ec4.pdfIn PDF document text
    • https://cdn.sqhk.co/valujoper/hcOifgc/jivavojizazosoleriwaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379971/normal_5fd61fb65dac4.pdfIn PDF document text
    • https://cdn.sqhk.co/mawejoxejobe/vhhifvK/decoracao_de_festa_de_aniversario_masha_eo_urso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393776/normal_5fd7b4f174f5a.pdfIn PDF document text
    • https://cdn.sqhk.co/gusiloxi/dRMSbif/judapegobivevamol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tozuduxaxikagik.rf.gd/fikakanowakafavepotir.pdfIn PDF document text
    • http://baletax.onlinewebshop.net/sig_sauer_fastback_nightmare_price.pdfIn PDF document text
    • http://nerokigonone.rf.gd/teviwik.pdfIn PDF document text
    • http://jidukoni.rf.gd/ccsu_b._ed_exam_form_last_date.pdfIn PDF document text
    • http://garulolit.rf.gd/online_html_css_template_generator.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_off0000c695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC695 5696 bytes
SHA-256: ec06ca0762dbd8fd901ce01ddb0dbbe0e2b1c24050737e1fa73a6b57536c824b
font_01_sfnt_off0000d9fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FD 9408 bytes
SHA-256: d118453940cd68f44704c45e7db9a224699c344bf2e333c44608f5db4573daff