Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3d290ead1705022…

MALICIOUS

PDF

62.1 KB Created: 2021-02-01 18:55:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 3d25fa651d6c01edd8e9c345f85a237c SHA-1: f9cff412a1516fb6bbdf83758489717746d024e0 SHA-256: a3d290ead17050226a571234b93e2d2152e1d37ab6bd309d96cde53470906084
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://leonvi.ru/123?utm_term=hoover+cleaner+manual PDF link annotation
    • http://lighterusb24.site/fejitonibogufi9og7a.pdfIn PDF document text
    • https://cdn.sqhk.co/zupodejadofe/gjrbhhW/boo_radley_description_quotes_page_number.pdfIn PDF document text
    • https://cdn.sqhk.co/mabuviko/O5sggdL/kidivovedelomewi.pdfIn PDF document text
    • https://cdn.sqhk.co/mopewedote/hfjbE2O/64931855899.pdfIn PDF document text
    • http://the-english-temple.com/98105264230tfz65.pdfIn PDF document text
    • https://cdn.sqhk.co/fufigavaki/gh8WiVV/show_me_bowling_alleys_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/dufolatik/qFhicgd/elton_john_songs_youtube.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465559/normal_600808843ad8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428054/normal_600c1b4c7230e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/77777812928.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/fepojaziwuvidakiwomo.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/catia_v5_formao.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_off0000b7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7F2 4788 bytes
SHA-256: b2492b71024ae9487f9d5a388552b4549877e755986b0bd3065705ea0dfdde96
font_01_sfnt_off0000c82b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC82B 10616 bytes
SHA-256: 8231ca81b85ac105e6dee66d588e68ad4776d421a942d6c9cdbb42e8717b4119