Malicious PDF — malware analysis report

Static analysis result for SHA-256 205656b5bf7d9810…

MALICIOUS

PDF

69.3 KB Created: 2020-11-10 10:17:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-20
MD5: 4b53f53e467a6b369c56cc418ed5f8e2 SHA-1: f3d6a917d577053069cc3932877670132dcba125 SHA-256: 205656b5bf7d98105ccfe3260116c9b140489ad212587ecf4afaa1318d15de2f
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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
  • 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://ggtraff.ru/wb?keyword=annovi%20reverberi%20rmw%202.2g24%20manual In PDF document text
    • https://revanesowokaw.weebly.com/uploads/1/3/4/6/134652238/976fdc061e8af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369508/normal_5f9bd3d1c254a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412161/normal_5fa9c348424dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421778/normal_5fa40fcf9f0eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410679/normal_5faa406129fe6.pdfIn PDF document text
    • https://nurosamemozixa.weebly.com/uploads/1/3/4/3/134375837/fenejizewanexebotud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379473/normal_5f8d4f482b053.pdfIn PDF document text
    • https://bupifepubeweta.weebly.com/uploads/1/3/4/3/134336259/suriwekama.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/gusasufawidebapekizig.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c3f1.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c3f1.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000fa2e.bin)
    • 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 extracted file (font_00_sfnt_off0000c3f1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c3f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3F1 5160 bytes
SHA-256: fab023fc63e04983b610424787e1be13b74a10ea1f156f824dee2a5eeef194b5
font_01_sfnt_off0000d57a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD57A 11032 bytes
SHA-256: 1072676392744fae74e6932f6042b41ec1cc180eac2c436537b0c28906c34261
font_02_sfnt_off0000fa2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA2E 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34