Malicious PDF — malware analysis report

Static analysis result for SHA-256 49b62b878b3c8c37…

MALICIOUS

PDF

62.1 KB Created: 2020-12-16 05:30:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f5e4e7f8c2448f11707c00737e62f6fc SHA-1: 6788a52e8c567c7e789b2433cc0f3f7cb1d6d6d5 SHA-256: 49b62b878b3c8c377185d5cab1d6c0ac2b91f65f45c4ff137815e5b526cb329a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The document body, though heavily obfuscated, appears to reference product details, likely as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafffe.ru/123?utm_term=mens+valet+stand+with+seat PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458827/normal_5fa9431d22ab4.pdfIn PDF document text
    • https://vazujupipizake.weebly.com/uploads/1/3/4/7/134719511/6414205.pdfIn PDF document text
    • https://kitopelok.weebly.com/uploads/1/3/4/3/134355781/2374505.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418981/normal_5fd7860ff3f3f.pdfIn PDF document text
    • https://godadonalizubo.weebly.com/uploads/1/3/1/4/131437317/purigixajelupigeru.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/donarepemi/kakikotiva.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e88b8139af0376454bd0/t/5fc1028ef3de5e49b5882355/1606484623433/the_sims_android_apk__data.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/manorama_weekly_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pukasojalu/navy_junior_rotc_instructor.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/working_model_jet_engine_kit.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_off0000b935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB935 4972 bytes
SHA-256: 7ff29b81facb0130f4d0f484c198cf11fce349da5cf74f487667c8e6f0f6c2c3
font_01_sfnt_off0000ca39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA39 9848 bytes
SHA-256: 055726963cb1baa0262766965c154be0dcc3798790d3326e4cbe83dc6b8daca1

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