Malicious PDF — malware analysis report

Static analysis result for SHA-256 1721208cb5a808ba…

MALICIOUS

PDF

65.5 KB Created: 2021-02-16 00:00:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 61179db4957b3a5627e857a754a567d3 SHA-1: a6eb99f9855fec837004c2a8b2c742dcb4eb2964 SHA-256: 1721208cb5a808ba20f391b3a7cd7dccebd0c7bc6950c31d56f6cc710477650d
136 Risk Score

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wb?keyword=forgotten%20realms%20map%205e%20pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4468812/normal_6014281cc801b.pdfIn PDF document text
    • http://ig-copyrighthelpcenter.com/64313109884fd8vd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462982/normal_602aeee15ad4e.pdfIn PDF document text
    • http://fogazino.iblogger.org/bheel_movie_songs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418368/normal_5fe4203e8dea0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457843/normal_5fef0f455f668.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455657/normal_6003823dad944.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426957/normal_5fc878b27d2f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467300/normal_5ffe81791c84b.pdfIn PDF document text
    • http://good-production11.site/bevukoupqce.pdfIn PDF document text
    • http://lovasosirukes.iblogger.org/plato_s_allegory_of_the_cave.pdfIn PDF document text
    • http://xavelodezazil.iblogger.org/palis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kiwozoma.epizy.com/diwavaxoforirosa.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/islamic_divorce_certificate_template_uk.pdfIn PDF document text
    • http://divupovive.epizy.com/microsoft_dynamics_365_on_premise_installation_guide.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_off0000c0b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0B6 5440 bytes
SHA-256: e980f5189ee8c4f6990d889a05e8a828817ba6f7826efd43d8ca5657809688b2
font_01_sfnt_off0000d32d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD32D 10956 bytes
SHA-256: 85b1835884c44526a4c76de62791cb9905e21595ebd0e6ebe5d23ad4406a4ffc