Malicious PDF — malware analysis report

Static analysis result for SHA-256 700bf37abccf6b92…

MALICIOUS

PDF

69.6 KB Created: 2021-02-10 01:40:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8c8da8bb99669f4558ef6dce051b209c SHA-1: 3a440479f58d4838fcd43c074951cffd3487fb9d SHA-256: 700bf37abccf6b9285b6cd78ab346f7f5de51913b1eb4dea862799069b7810e6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wb?keyword=letter%20of%20interest%20for%20project%20template PDF link annotation
    • http://janurikemodowu.iblogger.org/gst_audit_report_format_notification.pdfIn PDF document text
    • http://pedron.fun/bedanejavuvuso4el93.pdfIn PDF document text
    • https://jebilazi.weebly.com/uploads/1/3/1/8/131856389/zireve-xusewigifize.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413456/normal_5fda6c8d57e74.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385435/normal_5fcbb66cd7e60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387709/normal_6002b4a89eddb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446170/normal_5fcdfe5572b0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475564/normal_5fea285a0fbca.pdfIn PDF document text
    • http://sbrf.link/cruiser_vintage_skate5hw0r.pdfIn PDF document text
    • https://nolulanulupu.weebly.com/uploads/1/3/1/3/131379612/xozosijotop.pdfIn PDF document text
    • https://musevurimimurom.weebly.com/uploads/1/3/4/7/134711136/80645b8be1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://timikawimi.rf.gd/azar_grammar_workbook.pdfIn PDF document text
    • http://webubekesivamuf.epizy.com/gefoturoluwawagipovimotig.pdfIn PDF document text
    • http://rotitow.rf.gd/guided_meditation_morning_short.pdfIn PDF document text
    • https://s3.amazonaws.com/vesubodufisi/nemededax.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/39289775108.pdfIn PDF document text
    • http://fofanab.epizy.com/zutovetotepu.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/gastroenterology_guidelines_2017.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_off0000d61e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD61E 5176 bytes
SHA-256: 63e0b66f86c9e573f4bf39468a4bb5a22c6616919f306db58d56fbfefb1b2afa
font_01_sfnt_off0000e7b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B0 9868 bytes
SHA-256: 123c82bd407c7729f30f5d5726d69e190356bad760b7d2efdfdf3346a075158d