Malicious PDF — malware analysis report

Static analysis result for SHA-256 41e0be05a5af245e…

MALICIOUS

PDF

68.9 KB Created: 2021-02-15 06:14:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8e72b1c14261de4a38213b819cc59873 SHA-1: 95b49b72025dbefd5a3353df2c2574fe6d224e3a SHA-256: 41e0be05a5af245eea44ecd8cf621755c432b981099eabb28a9745e781fcd547
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://leonvi.ru/wix?keyword=daily+paragraph+editing+grade+6+answers PDF link annotation
    • https://zedabobosarafon.weebly.com/uploads/1/3/0/8/130813357/tovawivoguvopoxepe.pdfIn PDF document text
    • https://lodavoxi.weebly.com/uploads/1/3/4/5/134505118/7590793.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413702/normal_5fed38cba767f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444853/normal_5fc5a19adf433.pdfIn PDF document text
    • https://cdn.sqhk.co/dakuwuwuzije/RjdIic0/81408430364.pdfIn PDF document text
    • https://mimasalidapu.weebly.com/uploads/1/3/4/4/134466186/677082.pdfIn PDF document text
    • https://mobinefoju.weebly.com/uploads/1/3/1/3/131398425/81d12ddcc6affc.pdfIn PDF document text
    • https://cdn.sqhk.co/luxixumogez/agc0tjb/vanolavesifimefumafovis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480904/normal_600ebe91cca60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392647/normal_60093e529e3a6.pdfIn PDF document text
    • https://tisemadu.weebly.com/uploads/1/3/4/3/134387657/riwoxamevubag.pdfIn PDF document text
    • https://febumade.weebly.com/uploads/1/3/4/7/134757335/8462517.pdfIn PDF document text
    • https://cdn.sqhk.co/nepusoliweda/UEqgid9/30208373240.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454180/normal_600f2434478f5.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_off0000cdf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDF6 5568 bytes
SHA-256: 5827a86d877cbb01dbad2f54fbb4ab0aeb090bb5fc16bbb7a9fd69c162cf6a9e
font_01_sfnt_off0000e102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE102 10436 bytes
SHA-256: 86786b19dd5206ab555d4042e3f7a6be723b0fa45f3e2bc73844207efdc19aaa