Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea3d3872832ba273…

MALICIOUS

PDF

72.4 KB Created: 2021-02-17 11:44:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ef523d789e23630f8ad9edc3b80e6dbb SHA-1: 21bc60aeee847a197fd50a8ce146f317bb93a665 SHA-256: ea3d3872832ba273d8d5958034a573c970d389bde2145a6a72703a1b23feb852
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://jacksth.ru/wb?keyword=kenmore%20he2%20plus%205d%20code PDF link annotation
    • https://cdn.sqhk.co/vakusukereju/sN6ijhh/lineage_definition_sociology.pdfIn PDF document text
    • http://bottlechainworld.com/microsoft_edge_home_page_news29isf.pdfIn PDF document text
    • http://white-x.fun/amiga_cd32_rom_packewy5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388040/normal_5fe7876987437.pdfIn PDF document text
    • https://cdn.sqhk.co/konumapedowe/Awgh9gj/14650559655.pdfIn PDF document text
    • http://invitesistem.ru/excel_sheet_reference_dynamic35r79.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380700/normal_601be6d889498.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410199/normal_60007ed24dc22.pdfIn PDF document text
    • http://optarfes.com/46735003992dn3t1.pdfIn PDF document text
    • https://cdn.sqhk.co/nawakema/AJAhjbQ/jidatajubixatox.pdfIn PDF document text
    • http://prizinsta.online/yeni_balayanlar_iin_pythonmb0si.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411500/normal_5fcbc8f07b6ef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tokeparab.epizy.com/c_books_for_beginners_free_download.pdfIn PDF document text
    • http://dufogatate.epizy.com/liverpool_echo_football_reporters.pdfIn PDF document text
    • http://sekijipaladi.epizy.com/86701351423.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_off0000de47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE47 5328 bytes
SHA-256: f2b648de2cd7083f146619b9dd40ab7119a70c710d6c40115762c8d6d8d2c9e3
font_01_sfnt_off0000f04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04F 10704 bytes
SHA-256: 066bead3009f6656ad2eec9226d69181f5cbe7dda6df9d67900230fc74122def