Malicious PDF — malware analysis report

Static analysis result for SHA-256 4feee546b4d446b6…

MALICIOUS

PDF

68.2 KB Created: 2021-01-02 14:11:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 9b20dbafca01dd21df3312af25d598cf SHA-1: 32b8c5f76544f114bae1dfaba60aef5561248853 SHA-256: 4feee546b4d446b65c05c2becc5c8f6ea616b79e12119e3a2765614bccb5ab8e
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://traffset.ru/wb?keyword=business%20plan%20example%20template PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417536/normal_5fcaa0de72444.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388407/normal_5f93436edc2c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369522/normal_5fe3ea7b1d964.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467577/normal_5fafbc5cb2815.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391954/normal_5fa3345f40db8.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/rotowan/archicad_16_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/pamimutikedosakikuxulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96a6d803-a34b-409a-8f98-97e8447ac3f8/fapebomodinozujomisa.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/sia_chandelier_sheet_music_piano.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/kiziromofoguk.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/27128901165.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c0a2d39-62e6-4ea4-8d42-9884bc463bdd/beli_pulsa_listrik_bayar_belakangan.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/construction_site_instruction_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/beechcraft_king_air_200_maintenance_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/audio_technica_at2020_usb_mic.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_off0000cf4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF4F 4988 bytes
SHA-256: 68ab6fde2b9b169e39e06f2a0f9738953c7d829cab69c0aead8aaf97881c506f
font_01_sfnt_off0000e03b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE03B 10552 bytes
SHA-256: c89380d9315f69adb923981570a7cfbedac7f46b840a6820bd9bcf15f9392246