Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c0106071a1992de…

MALICIOUS

PDF

70.7 KB Created: 2021-02-21 12:41:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f2d0e51f077ac38e5a21becd068c731a SHA-1: ca02a973ef14aaa79d6484e235db3e2e3caaa53a SHA-256: 6c0106071a1992dee8b606e217457900acffe7214cb1c3af7d0808c25e0f23d3
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://seumenha.ru/strik?utm_term=lopi+wood+stove+door+glass+replacement PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4487381/normal_5fe56df26869d.pdfIn PDF document text
    • https://cdn.sqhk.co/musamari/GW0emji/nail_salon_open_late_on_sunday.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365583/normal_5fec410e645f1.pdfIn PDF document text
    • http://piwubexugapi.22web.org/83231077027.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421776/normal_600b6d88352fd.pdfIn PDF document text
    • http://bandalet.club/85403810149cvjx5.pdfIn PDF document text
    • http://help-feedback-amzn6.xyz/turezumikupusepivevuzexis2ppla.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380522/normal_5fc9fab4b2032.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://resibifamopoto.rf.gd/bitstream_font_navigator_2006.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/google_sheets_query_concatenate_results.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/flask_template_python_code.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/3210884795.pdfIn PDF document text
    • http://mexowotevofo.rf.gd/bifavosiwa.pdfIn PDF document text
    • http://memaded.epizy.com/adding_and_subtracting_integers_quiz_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/vibiw.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_off0000d874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD874 5484 bytes
SHA-256: 7c393e3f27d5e3286b3e49a0a393d7057791f2a64412b56466a8eb90e5ae3749
font_01_sfnt_off0000eb24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB24 10172 bytes
SHA-256: 995fa9fc1e4fd3ddfb2445f1dc3006651cf4833f32af238f826c3005f224f9c3