Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8d134b0b0359239…

MALICIOUS

PDF

91.4 KB Created: 2021-03-22 14:28:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9326dfadb304456ccd893306e6b57ef5 SHA-1: 5ea6f148fc5b73d2f01319fc7e42d91f024603d7 SHA-256: f8d134b0b0359239b978355aaa1236e79718724a4c551f60139b0ecb5002076e
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains multiple embedded URLs, including one pointing to 'resalured.ru', which is likely part of a phishing or malware distribution scheme. The PDF's structure and embedded links suggest it's designed to redirect users to malicious content.

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://resalured.ru/strik?utm_term=2008+jeep+wrangler+x+for+sale+near+me PDF link annotation
    • http://tokiridevifo.medianewsonline.com/91748979919.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_5fd6abb59fe35.pdfIn PDF document text
    • http://miwukewemiko.22web.org/46638577078.pdfIn PDF document text
    • http://jepenufi.getenjoyment.net/45149065153.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393754/normal_6028f41cd0fa3.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/bacterial_conjugation_transformation_and_transduction.pdfIn PDF document text
    • http://tonilakifak.mypressonline.com/56428724161.pdfIn PDF document text
    • http://rofogukiluvupu.mygamesonline.org/cutting_edge_intermediate_3rd_edition_workbook.pdfIn PDF document text
    • http://kevakigev.medianewsonline.com/weber_grill_grates_cast_iron.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feferabi.atwebpages.com/baxi_luna_3_comfort_310_fi_error_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5a7c77d-f09b-45d9-a515-9ad3a0e7bb9e/razamizarokasojov.pdfIn PDF document text
    • https://2ed821ec-8078-4e74-b11b-c5cec6a88262.filesusr.com/ugd/65e777_e3190056d7fa44fe8cac1c940211bfd6.pdf?index=trueIn PDF document text
    • https://694dae7a-2033-4a59-8b06-91ff4eec0774.filesusr.com/ugd/e1d58f_f3cc3f4e0aa1442b89610e206429102a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/44fe0255-0639-4d83-ab68-6ad107e5225f/luniberesipiborute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0886deb-f91b-4fcb-b33b-04ee022197af/lolix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d93b86e-5e55-42d9-bdbf-9389e66100ca/modelo_de_ensayo_argumentativo.pdfIn PDF document text
    • http://tewederukafolez.rf.gd/arma_2_dayz_overpoch_mod.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_off00012364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12364 5828 bytes
SHA-256: ac9a99bb461363279a85e1c06daad500841a338f0e7b557b3160e07de4be5919
font_01_sfnt_off0001374b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1374B 12020 bytes
SHA-256: 29de10bc098714691e30453eac3995b6c7b78fe6f4596ea548843d6181a9b84d

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