Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea305963e4159d61…

MALICIOUS

PDF

68.1 KB Created: 2021-03-02 20:32:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 755a71725c1c3d5f064a332c79f80d53 SHA-1: 459ca44732d6b996797c4b2a13b39eff0be8c310 SHA-256: ea305963e4159d61618706e4da09f1670ee7ff8febf6849c4553bafce32e9540
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple external links, with one specifically identified as a lure for an installation guide. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8149

Heuristics 4

  • 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
  • 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://resalured.ru/award?keyword=viper+3305v+installation+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393644/normal_60129548e3e12.pdfIn PDF document text
    • http://lelekelosutov.getenjoyment.net/sigma_1200_bike_computer_wheel_size_chart.pdfIn PDF document text
    • http://davebamonuzove.medianewsonline.com/free_printable_venn_diagram_template_with_lines.pdfIn PDF document text
    • https://murenelu.weebly.com/uploads/1/3/1/8/131856612/nubub.pdfIn PDF document text
    • http://xufamorazogubov.sportsontheweb.net/elementary_algebra_skill_solving_quadratic_equations_by_factoring_answer_key_with_work.pdfIn PDF document text
    • https://sebupemisopuba.weebly.com/uploads/1/3/4/7/134706320/bimaki_vujagivogorikip_motavejomikodod_puluzibawop.pdfIn PDF document text
    • https://podogavefa.weebly.com/uploads/1/3/1/4/131438056/poripetixuje.pdfIn PDF document text
    • https://nelizebowi.weebly.com/uploads/1/3/4/7/134734992/xepevi.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/kebotopelokom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xurosuforudev.atwebpages.com/fedunok.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/nulafawimol.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/dibakusedowegedorivemodig.pdfIn PDF document text
    • http://sitafefisoju.atwebpages.com/sat_math_1_sample_test.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e85d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85D 5580 bytes
SHA-256: 840c317beab9c32d49936e330a1cc8be510f4f8f1f8e94d59974315c4e703d95

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