Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b8ec0fe43a6b93e…

MALICIOUS

PDF

66.4 KB Created: 2020-11-19 08:45:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1bc4a7f78b631046ff0eb91c2bf8f6d1 SHA-1: de10291747069f4652f47b17dab2e2c344ca6561 SHA-256: 5b8ec0fe43a6b93ec0bca36ba4cdd103369ee9d7468de20778f95ca08b615183
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link and employs a browser installation lure, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded URL is used to redirect the user to a site that likely hosts a malicious payload or phishing page.

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
  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://gettraff.ru/strik?utm_term=palmistry+download+software+free In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zuxime/novedaworidezeza.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/pokemon_sun_and_moon_episode_75.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc080134-1b20-4ee0-8dc0-1afac417e0af/avengers_infinity_war_version_exten.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/carteira_de_vacina_cachorro.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/72919042023.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/past_tense_irregular_verbs_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/zesejiwabesoj.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/audi_a4_mmi_navigation_plus_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b9bb556-2c34-4ce0-830d-50e02cac08e4/drumstick_wall_display_case.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/bifinonemifapekiwap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3a565b8-068f-46dc-9543-f386331bed72/mewasufonupibigupubinom.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/budismo_tibetano_meditacion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5426cf7-77a2-4eb7-9def-214bdd3b1e97/95149255848.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33e9430e-517d-4e6d-9710-30969d9c2c46/14330831160.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e6f82f0-efff-4244-91c0-32e0399f66f7/kabefedif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79b98612-3902-4860-b315-fd2962147e97/great_big_bertha_driver_price.pdfIn PDF document text
    • https://s3.amazonaws.com/xafuluxel/galipuvoxijigol.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_off0000c6f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6F5 5248 bytes
SHA-256: c6c668b015459ace0e39ed6d85699b285f469f4ba69edb5c919ad24fe3ccc06e
font_01_sfnt_off0000d8d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D0 10536 bytes
SHA-256: b15ebe388a81fd1a10164acaedba9e69d0c12cb9b9e0bc45630e7216827bd43d

Open this report in the interactive analyzer, or submit your own file for analysis.