Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30bccdecb348053…

MALICIOUS

PDF

67.0 KB Created: 2021-02-17 03:41:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 84b18816166b5b53cd799549345fe119 SHA-1: 88413bda245b4bf01b95af2bc2fa5734832f9c2f SHA-256: d30bccdecb348053b3829c83a77cbd686e673157b373598efb2f9f9ee2ac0d3c
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://leonvi.ru/wix?keyword=blankets+graphic+novel+pdf+download PDF link annotation
    • http://lorenbayi.com/21389341664iv9ar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474222/normal_5fd70b968cdcb.pdfIn PDF document text
    • http://olymp-trade.top/roserudurarouop92.pdfIn PDF document text
    • https://togimapobeno.weebly.com/uploads/1/3/4/6/134649298/bixedurenozivatutof.pdfIn PDF document text
    • http://onlineeshop24.xyz/levis_jeans_uk_size_guide52pw6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411483/normal_5ff69deaa2341.pdfIn PDF document text
    • https://levapexufusetij.weebly.com/uploads/1/3/4/9/134904519/4df337080.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403952/normal_5fe2b0d45de9d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461498/normal_5ffea5bbe5772.pdfIn PDF document text
    • https://jotitotibewava.weebly.com/uploads/1/3/1/3/131383271/rizamojafe.pdfIn PDF document text
    • https://lukazerud.weebly.com/uploads/1/3/4/3/134343231/aaf2db.pdfIn PDF document text
    • http://helps-lnstagramcopyrights-about.com/teds_woodworking_plans_torrentbzqko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380223/normal_6027efcbb04bc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c8db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8DB 5680 bytes
SHA-256: 741d1103bda5df2d4a3cd4e3cf59e363ff84fe3fd54f21ba18f4ce9da6078f3d
font_01_sfnt_off0000dc45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC45 10336 bytes
SHA-256: 29d6031aaeb507941005499ffcc40a2713b586c6984f1514d49a58189e840b6c