Malicious PDF — malware analysis report

Static analysis result for SHA-256 941c3e6658f489bc…

MALICIOUS

PDF

74.9 KB Created: 2021-03-09 12:04:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 4e7a73198fb6ac35248925264535fc89 SHA-1: 3c397d3b6ac1ba6cb6f3c2701acc6d3d926b65d3 SHA-256: 941c3e6658f489bc8bb92e051843c9767083c8658008c4c979518703504b54fb
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xezojetit.ru/123?utm_term=archery+mod+coin PDF link annotation
    • http://static-get.top/how_to_read_stock_charts_for_beginners5zxaz.pdfIn PDF document text
    • http://raisinshub.club/827821085141vomy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499651/normal_5fcd965132229.pdfIn PDF document text
    • http://xemizawufogutuf.scienceontheweb.net/86734139753.pdfIn PDF document text
    • http://batut.space/fepimirokidexoxupejorobelvno8r.pdfIn PDF document text
    • http://kurixuj.sportsontheweb.net/ntuser.dat_windows_7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366374/normal_5fe4e51078628.pdfIn PDF document text
    • http://bafedudovodamo.medianewsonline.com/34834925562.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419822/normal_603683376f89f.pdfIn PDF document text
    • http://juwaniwabi.medianewsonline.com/how_to_reset_a_kidde_smoke_and_carbon_monoxide_alarm.pdfIn PDF document text
    • http://fexevewuli.mypressonline.com/68975379604.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://48bd7725-9370-4d18-884e-e75d7b70c9c4.filesusr.com/ugd/f241d9_72bb5025485543fd85973e0258dae2cd.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/79439596174.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/34208960643.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/grainger_plc_annual_report_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/performance_appraisal_examples_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/37461704063.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/decamp_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/staples_large_tab_divider_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/xulosewiduri.pdfIn PDF document text
    • https://f33d1b56-f518-462b-b61f-c1b5c1ba661c.filesusr.com/ugd/1c44ce_a6501068b82444ae858ec80202180ee6.pdf?index=trueIn 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_off0000e84e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84E 4852 bytes
SHA-256: 05df29a129aee1e138193d4c997a41e3c66cf3b1c78d076498f45f55099a8d68
font_01_sfnt_off0000f8a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A9 11060 bytes
SHA-256: 87d25bae87453c8216162861acb8b93e537fcdc8c9e45381527bb63767f0bae5

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