Malicious PDF — malware analysis report

Static analysis result for SHA-256 af658038b93fc7f8…

MALICIOUS

PDF

66.6 KB Created: 2021-02-15 01:29:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 77a92d1e29dc7b0d9da0d456b18c181e SHA-1: c203941847d17591d30f3b73582102ac91d6a787 SHA-256: af658038b93fc7f8c4d4cd488153f533bd6a060d5144632ace8b0479122d3b3f
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many pointing to disposable domains, and is flagged as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8925

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
  • 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
  • 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://bologen.ru/aws?utm_term=barbell+medicine+peaking+templates PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4475725/normal_5fecf43d81202.pdfIn PDF document text
    • http://apple-fruit.space/sevilisuzefozalubasomh6o.pdfIn PDF document text
    • http://itayoga.space/xozidofiresibiwasamaraxanm7ppb.pdfIn PDF document text
    • https://gukabezifom.weebly.com/uploads/1/3/6/0/136051166/zabofesu_ritezamikeput.pdfIn PDF document text
    • http://komamoj.22web.org/acc_aha_hypertension_guidelines_summary.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382972/normal_5ffeba3591596.pdfIn PDF document text
    • http://idslim-italia.site/68453208409e0r18.pdfIn PDF document text
    • http://fakaripeti.xyz/codycross_answers_group_4_puzzle_4reohk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458824/normal_5fee109d1f63a.pdfIn PDF document text
    • https://rekepepijo.weebly.com/uploads/1/3/4/0/134018016/norobazaje-fidebatusomizu-gokegivum-bodefo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458614/normal_5fdbaec04e23f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463807/normal_5fecb53c1f907.pdfIn PDF document text
    • http://zirosax.iblogger.org/31092924772.pdfIn PDF document text
    • http://gakelapirafit.epizy.com/dajogilo.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/56932491713.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/64891290948.pdfIn PDF document text
    • http://najubizep.epizy.com/balenciaga_platform_crocs_black.pdfIn PDF document text
    • http://kujafugakare.epizy.com/13803253225.pdfIn PDF document text
    • https://s3.amazonaws.com/dofufiri/cb_background_full_hd_1080p.pdfIn PDF document text

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