Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d97d3ceae0b6dd…

MALICIOUS

PDF

65.6 KB Created: 2020-11-23 23:27:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-27
MD5: e54d8e51b842db04b7d109534aa691bb SHA-1: f12a7ef43dfb38e08b2f25d4eac2bd1177d47993 SHA-256: c5d97d3ceae0b6dd958abebe4f63b343f5488381627100da353793eebd5aa319
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://traffmen.ru/strik?utm_term=valve+guide+knurling+tool In PDF document text
    • https://cdn-cms.f-static.net/uploads/4488133/normal_5fbc1d43dad9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370089/normal_5fa80d627ec2a.pdfIn PDF document text
    • https://namutaborizelo.weebly.com/uploads/1/3/4/7/134766338/lofesepexa.pdfIn PDF document text
    • https://tajuweselu.weebly.com/uploads/1/3/4/3/134362517/ded2a039a81db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422897/normal_5fae2c2e6aea9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414153/normal_5faf72badb1d3.pdfIn PDF document text
    • https://wopadutizibum.weebly.com/uploads/1/3/4/3/134306931/kasimefazaramol.pdfIn PDF document text
    • https://xipunozelizu.weebly.com/uploads/1/3/1/3/131382486/relakalixovafom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372100/normal_5f90453fd56fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465263/normal_5fa3282367e43.pdfIn PDF document text
    • https://zupuxugemewizo.weebly.com/uploads/1/3/4/3/134309945/2420721.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pukiza/39604940396.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/bronze_sheet_metal_home_depot.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_off0000c45f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC45F 4904 bytes
SHA-256: 94008c77d09b489d8d65d1dc787c2dbce4ab67bcd6068b46a11ea24033d1baf3
font_01_sfnt_off0000d528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD528 10776 bytes
SHA-256: 6ee62e97e60be5fe3c6b780625c98f38659d8f8677764bdcd14158dfc90c496f

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