Malicious PDF — malware analysis report

Static analysis result for SHA-256 25842ab5dd00b397…

MALICIOUS

PDF

42.8 KB Created: 2020-10-03 19:40:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-12
MD5: 6e26ac8832f92abe709b4c727fa7dd66 SHA-1: 6c9c2d97fb85183a0d09e263daa93c0fa0e664d2 SHA-256: 25842ab5dd00b3978ff6f708ac1b6b9366b3c8b21602b08f2db8afb16757ea18
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/strik?keyword=how+to+download+nba+2k17+ios+free In PDF document text
    • http://penesanos.woofdahyoupetcha.com/uploads/1/3/0/7/130776418/jowexu.pdfIn PDF document text
    • http://tuvasi.mo-menshealth.com/uploads/1/3/1/6/131637352/2717505.pdfIn PDF document text
    • http://wevojij.globalrelocationsolutionsinc.com/uploads/1/3/2/8/132814930/ruwipidona.pdfIn PDF document text
    • https://site-1036751.mozfiles.com/files/1036751/63870712588.pdfIn PDF document text
    • https://site-1039210.mozfiles.com/files/1039210/76867345229.pdfIn PDF document text
    • https://site-1037843.mozfiles.com/files/1037843/puvifuwefadubanex.pdfIn PDF document text
    • https://site-1039565.mozfiles.com/files/1039565/36242532198.pdfIn PDF document text
    • https://site-1037115.mozfiles.com/files/1037115/39870190169.pdfIn PDF document text
    • https://site-1037143.mozfiles.com/files/1037143/40813289313.pdfIn PDF document text
    • https://site-1036826.mozfiles.com/files/1036826/49737474290.pdfIn PDF document text
    • https://site-1037202.mozfiles.com/files/1037202/51021670090.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006557.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006557.bin)
    • https://cdn.shopify.com/s/files/1/0481/4736/6039/files/tradestation_9.5_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/7398/8518/files/bibadedusokekilav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/6681/4375/files/99351574720.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 extracted file (font_00_sfnt_off00006557.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6557 5424 bytes
SHA-256: ef0f7bc7f2d27bf5183595bdf205ad64ea69df3efb84361339fed3a572d9a3a9
font_01_sfnt_off000077f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F1 11132 bytes
SHA-256: fb4ce6ef855ff72226782a29b69e3fa6a152f7e7999bcdd14900fef74645baa4