Malicious PDF — malware analysis report

Static analysis result for SHA-256 7823c6cff27ab5ca…

MALICIOUS

PDF

70.4 KB Created: 2020-11-30 13:52:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 18419adc2d0ca44823ed374ff309809a SHA-1: add985bbdab9bd30c95b57abd2f078420fcc8706 SHA-256: 7823c6cff27ab5cae5b4689c9cc5281c7d8042165f4c25246f9d62e97353dd02
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/wb?keyword=avast%20antivirus%20%20for%20pc%20windows%20xp In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369189/normal_5f93530b8fc59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424981/normal_5f9dbca3260f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419003/normal_5fad8736b52da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461516/normal_5fbd47fddfffd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b74d1f9-b388-4e14-aad9-6ef9bee5e354/nibojafesekuga.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/pajekomosasiso.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe03a4cb3e0f5771154382/1606288292709/bodit.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/95775916041.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7455f20-b8d4-4b30-b4e0-f1ed74dabb41/lojokejapuvoxu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0feaf0a2757459be36412/t/5fc1e7eef8cdb769c6286cfe/1606543351310/vidmate_apk_download_free_for_android_old_version.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/22935582540.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/vutetilufoxoge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fd9b18d-5515-4dbb-8bfd-c8dcf0f76cc1/nba_youngboy_tour_dates_2020.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3b7d50a2757459bf48cbe/t/5fc4a6c39b1ed03538709ee1/1606723268713/25685987652.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0926061-2ef5-4c93-931c-1e9b2a862fea/rikise.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_off0000d74e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD74E 5328 bytes
SHA-256: a1e5de80a9b24f09bb46bf8724397dad66d83b87e4f8a6639e21e60db147e361
font_01_sfnt_off0000e994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE994 10212 bytes
SHA-256: 8ad5ddf928bab6838a21181486783e53737c91d245022f0316f406cf32903681

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