Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd0d6c5c125cdaed…

MALICIOUS

PDF

71.6 KB Created: 2021-02-28 10:36:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a77d5bdfec55cbcd93d8a677eda2266d SHA-1: fc03e6a03163257f1cf8bc1c3cbbb86bc5f626d8 SHA-256: bd0d6c5c125cdaeddf0fa1747b002fc934df647550b05ac289da563f2ee89c3b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/123?utm_term=wedgewood+vision+stove+knobs PDF link annotation
    • https://cdn.sqhk.co/jimumakevaji/amZcjcA/misazowapozura.pdfIn PDF document text
    • https://cdn.sqhk.co/nupasoxure/Knihxia/northern_blazing_star_wildflower.pdfIn PDF document text
    • https://cdn.sqhk.co/jevamivuvugi/jU7BGP6/xarevajafunesozilep.pdfIn PDF document text
    • http://daludaja.getenjoyment.net/test_de_inteligencia_emocional_goleman_para_imprimir.pdfIn PDF document text
    • https://cdn.sqhk.co/jevamivuvugi/eveYgfW/how_to_get_likes_on_twitter_fast.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471682/normal_601b052b1dcfe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483075/normal_5fdc46d4d368a.pdfIn PDF document text
    • http://kisadukesi.22web.org/skyrim_house_mods_keep_crashing.pdfIn PDF document text
    • http://poroda.site/bewadunokekufeljda2t.pdfIn PDF document text
    • https://cdn.sqhk.co/fumodolanes/jCagdji/nda_exam_paper_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nelifofufotilep.epizy.com/koretokofilalo.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/notaxexex.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/zegubavezujelozukomona.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/lyresto_lead_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/19305722075.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_off0000dbd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD6 5024 bytes
SHA-256: 6b73dc4f92a99a0c6064b2d39d4d83ee6dad08bd685538698b2c5f3857fce9b3
font_01_sfnt_off0000ed28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED28 10828 bytes
SHA-256: 402f7227dd1edd8da38e378c0399f0be7d184fb9b684909cac0c6c8bf42ca37d