Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b68fc3d90ba7d3f…

MALICIOUS

PDF

90.6 KB Created: 2021-01-03 08:09:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e57f9a29d4315163d415798818720c76 SHA-1: 940403c7342e8c502c6f5b46c4f83fab89cd0a49 SHA-256: 9b68fc3d90ba7d3f097c9be3dbacc87c9c8f0347736350de625bf48dfa3aa79c
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/wb?keyword=the%20lighthouse%20cafe%20los%20angeles'. This URL is likely used to redirect the user to a phishing or malware distribution site. The ML classifier also flagged this PDF with a high probability of being malicious, supporting the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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://cctraff.ru/wb?keyword=the%20lighthouse%20cafe%20los%20angeles In PDF document text
    • https://cdn-cms.f-static.net/uploads/4420237/normal_5fb7a166758d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385207/normal_5ff12cbd0f7d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408851/normal_5f937a3a92a4d.pdfIn PDF document text
    • https://cdn.sqhk.co/zupodejadofe/hdEjfAn/pisagitiweniluxejigej.pdfIn PDF document text
    • https://cdn.sqhk.co/gifalaminika/y3M1jdV/star_wars_jedi_fallen_order_dlc_release_date.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451350/normal_5fda1f19ea9d3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388619/normal_5fc5ab5075701.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/19ce167e-1f46-44a0-aae9-08ef759845b9/focussed_or_focused_canadian_spelling.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/76722056127.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/96959142560.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afdb560f-4c3a-4cf2-9123-acb097f08476/slides_sobre_liderana.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/ancient_egyptian_civilization.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_off00012681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12681 4996 bytes
SHA-256: 077d9a07fcf21cc2e6a495b41f4d5201408273f5522dcdc34c3aee10a246658c
font_01_sfnt_off0001378b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1378B 11664 bytes
SHA-256: d300690feff8c3f9cf463ef97d341ef9bf1534f1d56308c1f193237becfac45e

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