Malicious PDF — malware analysis report

Static analysis result for SHA-256 96cc6e39a21c56a2…

MALICIOUS

PDF

71.1 KB Created: 2021-02-23 19:04:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a1286467618070081e2f046316dcd42d SHA-1: 6a9f405c9e22b7fd1ce018090cbce3a899891437 SHA-256: 96cc6e39a21c56a2cd19b1a94b645083a7a5553b3834f8825aaf21dd98330bf4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/wb?keyword=how%20do%20you%20cook%20brown%20rice%20in%20aroma%20rice%20cooker PDF link annotation
    • https://nububoreral.weebly.com/uploads/1/3/4/4/134467099/zufusudisu-fifunuzani-dofufosox.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379742/normal_5fe5a22459de5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408599/normal_600ea7ed79935.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414169/normal_6020381be97c8.pdfIn PDF document text
    • https://leneguvajetuse.weebly.com/uploads/1/3/1/3/131380977/zeroze.pdfIn PDF document text
    • https://lowujowe.weebly.com/uploads/1/3/5/3/135320741/jugoburad.pdfIn PDF document text
    • https://ruzopujiwinor.weebly.com/uploads/1/3/1/4/131452977/gugubebu.pdfIn PDF document text
    • https://lamipakowoj.weebly.com/uploads/1/3/2/8/132814468/poseje.pdfIn PDF document text
    • http://kubarabonexomi.iblogger.org/aplikasi_bitcoin_gratis_android.pdfIn PDF document text
    • https://vadurevagide.weebly.com/uploads/1/3/3/9/133999829/f2f0363b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444110/normal_5ffebfe322259.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lidewez.epizy.com/deadlift_form_muscles_worked.pdfIn PDF document text
    • http://dakokaxawizepu.epizy.com/engineering_drawing_symbols_chart.pdfIn PDF document text
    • http://vebaxabono.epizy.com/502728404.pdfIn PDF document text
    • http://wogurep.epizy.com/fuvosubabopowuvare.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_off0000d858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD858 5232 bytes
SHA-256: 0c7225b803fdf10fb2ea5bf022a14eb6bd544d9e1f610d677d3655db779a7b5b
font_01_sfnt_off0000ea27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA27 10964 bytes
SHA-256: 35232b8defb743d9bc37df4b21554851293016776459e5dad97e4e7824d6bc93