Malicious PDF — malware analysis report

Static analysis result for SHA-256 b369289f901802ef…

MALICIOUS

PDF

81.6 KB Created: 2021-02-11 10:45:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 899e75f8f0d22089aff6f43551931f95 SHA-1: 34a7b32ce9d1ca0ae8b85763db19b7abf005f655 SHA-256: b369289f901802ef5ba032f86ded60312aaa7e22138db9febc6dcd4e1f27eea2
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and multiple heuristics indicate it is a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely leading to a second-stage download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://seumenha.ru/123?utm_term=equate+pregnancy+test+faint+positive PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4482403/normal_6003c867dcd10.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/jcXjegj/68442925128.pdfIn PDF document text
    • http://copyrightsupporteds.com/nikon_f2_manuale_italiano2lh4a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402718/normal_5ffa3276b47c4.pdfIn PDF document text
    • https://cdn.sqhk.co/dopiporajen/fgjzggw/atomos_ninja_v_battery_eliminator.pdfIn PDF document text
    • https://cdn.sqhk.co/vonezositixi/8xdsBhb/canvas_student_download_chromebook.pdfIn PDF document text
    • https://fosevikotik.weebly.com/uploads/1/3/1/6/131637163/2611229.pdfIn PDF document text
    • https://lopetumidola.weebly.com/uploads/1/3/3/9/133989387/zizuvemikesuz-gapomiwabifu.pdfIn PDF document text
    • https://dotozirijekuzo.weebly.com/uploads/1/3/4/3/134315872/nefoxoxot.pdfIn PDF document text
    • https://gisogademumes.weebly.com/uploads/1/3/1/3/131379615/durirupamuvozim.pdfIn PDF document text
    • http://newberginvestmentproperty.com/gerund_and_participle_exercises_with_answersjnj8g.pdfIn PDF document text
    • https://tugalebuwe.weebly.com/uploads/1/3/4/0/134012885/tofimuzowuna.pdfIn PDF document text
    • https://memefuzagimo.weebly.com/uploads/1/3/4/6/134612336/soriwinizezesopusi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493876/normal_5fec41c71947f.pdfIn PDF document text
    • https://cdn.sqhk.co/jisogixij/TcDblgf/gotopel.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/fadadedezeker/vigunalalipinobo.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/laryngeal_cancer_journal.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/369087972.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_off00010211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10211 5396 bytes
SHA-256: f38ebdb1fb82068ee83a992af90a9cb22c2e8951366f15cf1fc601e7038debed
font_01_sfnt_off00011493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11493 10796 bytes
SHA-256: a07dece705763f2996386d452266627a0d3e6911524b630caa86c7014b528e05

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