Malicious PDF — malware analysis report

Static analysis result for SHA-256 b70c1206646a97f6…

MALICIOUS

PDF

73.3 KB Created: 2021-02-17 13:56:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ef595e410295b3cc3df14c40c18e06a3 SHA-1: 06454b9914128b4ef9c4bba0f4309f2f493fef40 SHA-256: b70c1206646a97f6e99e2fd4f18a3c3b126db367e82c1652b3f00bed5ae3e8b0
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating the presence of an external URI. The embedded URL, https://baarspo.ru/123?utm_term=bram+stoker%2527s+dracula+coppola+review, suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the nature of the URL point towards a common attack pattern for delivering malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/123?utm_term=bram+stoker%2527s+dracula+coppola+review PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4474979/normal_600270521cbfd.pdfIn PDF document text
    • https://cdn.sqhk.co/sututidogo/CichcdU/20543142229.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/dkhboji/16267847290.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453891/normal_602937f9b4f22.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485436/normal_5ff78e6ce8a45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404297/normal_5fd3cb6c72f52.pdfIn PDF document text
    • https://cdn.sqhk.co/semiwewedazi/ehbU58f/facebook_messenger_check_mark_by_message.pdfIn PDF document text
    • https://cdn.sqhk.co/dunokufimove/jf6Cwhi/101_okey_internetsiz_hile_apk_indir.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410416/normal_5fff3fe0203fd.pdfIn PDF document text
    • https://cdn.sqhk.co/bukoxomule/gj3gfoh/live_weather_radar_free_app.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413978/normal_5fd0c3735b0eb.pdfIn PDF document text
    • https://cdn.sqhk.co/ditutafewaw/ia7QjjI/voputogewobubu.pdfIn PDF document text
    • https://cdn.sqhk.co/mijajijem/eGicghF/66837194983.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382949/normal_5fdc8231d9fd9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kinapemib.rf.gd/kikugunux.pdfIn PDF document text
    • http://vuripoda.epizy.com/injury_report_colts_patriots.pdfIn PDF document text
    • http://kenefokugoxetu.rf.gd/adobe_reader_9._3_free_filehippo.pdfIn PDF document text
    • http://kedekivotizera.epizy.com/xomeleledo.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_off0000e027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE027 5520 bytes
SHA-256: 92a1da604068a03539b9653fd3f08f488ca09796e8b74a8a9bfe0f0be9c3eb11
font_01_sfnt_off0000f2f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F4 10896 bytes
SHA-256: 835101031da146b7453d2745ce6beece9dc2de9345b4607c4fc3e50b6f8fce02

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