Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a8c97bd390645f1…

MALICIOUS

PDF

77.4 KB Created: 2021-03-01 02:19:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e74eb1df25ff6a3e1b6c03b87c287a54 SHA-1: e56d59a3105e2e9d63f694ca84452886467f1625 SHA-256: 9a8c97bd390645f1af8de7022318ba825c1d6414f79001e52a7d190905c76d41
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, many of which point to disposable domains and are used in a link farm, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the structure and embedded URLs are indicative of a phishing lure designed to redirect users to malicious sites.

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://jumiwimov.ru/123?utm_term=what+is+the+best+toaster+oven+brand PDF link annotation
    • http://contact-git.top/732364040941qt9i.pdfIn PDF document text
    • http://vosajizegek.mypressonline.com/new_world_of_darkness_merits.pdfIn PDF document text
    • http://desajegurake.scienceontheweb.net/47905198873.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/womizik.pdfIn PDF document text
    • http://trastenmyqort.online/human_geography_textbook_onlineusunn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494661/normal_6017de28a6786.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/dvgihiQ/76824389035.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490141/normal_5fd350702f3af.pdfIn PDF document text
    • http://gagitevanonuti.mywebcommunity.org/62505887339.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459059/normal_60239fcf6e69c.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/rivajuralu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370092/normal_5ffed1dbed6c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423780/normal_5fef0c31ac259.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369322/normal_600cecd57d213.pdfIn PDF document text
    • http://jakartapro.xyz/tidalomkb8b.pdfIn PDF document text
    • http://itslm.fun/babylon_mystery_religion_booktlsq1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388169/normal_60095a5d63034.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/make_google_search_homepage.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jifisuxevizek.myartsonline.com/cub_scout_outdoor_code_and_leave_no_trace_games.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF280 5092 bytes
SHA-256: 592564a7a241d2e0a17bc3c626990680a847d210864a26e65a69f674791bf601
font_01_sfnt_off000103d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103D7 10664 bytes
SHA-256: 619d2bd9d6fdd53a562e7832a0abe190a466d831c429f309b3a1c16346b5eccc

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