Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c6237128c59928…

MALICIOUS

PDF

72.7 KB Created: 2021-03-01 07:33:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ae7575913560a1123d108708ba3e60c8 SHA-1: 40d8e0992a595e9b092dfd73ea1242ad71c10f69 SHA-256: c0c6237128c599283d58ff24f1b23939b6485df18ade559859c1e9d92539a4a1
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, with a high heuristic firing indicating it functions as a link farm on disposable hosting. One prominent URL, 'https://ponafet.ru/wix?keyword=falls+lake+academy+jupiter', is directly associated with the PDF's content and is flagged as suspicious. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9528

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://ponafet.ru/wix?keyword=falls+lake+academy+jupiter PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4470232/normal_5ffd62e7349e5.pdfIn PDF document text
    • https://texapusozos.weebly.com/uploads/1/3/1/4/131407592/xomumevufopodi_zoboz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452392/normal_5fd5f5edd15cc.pdfIn PDF document text
    • https://musonilemif.weebly.com/uploads/1/3/4/7/134752032/tumukodaxokoku-jumanima.pdfIn PDF document text
    • https://zozilevijuni.weebly.com/uploads/1/3/1/3/131383476/4471294.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372085/normal_6035b3dc391d6.pdfIn PDF document text
    • https://filafibiwi.weebly.com/uploads/1/3/4/3/134316544/dudededobemuzo.pdfIn PDF document text
    • http://zexinebizo.22web.org/99267205693.pdfIn PDF document text
    • http://motivawka.online/jawulixogegukapikoj3e5y.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/tomaxade/zukufanobek.pdfIn PDF document text
    • http://rimalapotozuf.epizy.com/consonant_blends_assessment_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/javabatapuzawusum.pdfIn PDF document text
    • http://mulotuzasokafo.epizy.com/graco_high_chair_pa-24833.pdfIn PDF document text
    • http://ponuruv.rf.gd/velanaz.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/12582439182.pdfIn 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_off0000e7d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D1 5416 bytes
SHA-256: a98e0169f627212c44bc1e9c3001f64a011b4140a5f6ac8cb9f3b77ef834c257
font_01_sfnt_off0000fa38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA38 10516 bytes
SHA-256: ede151fb054efc4c3f35ac8cff2263c8ea433330497ff6371da48734a1615337

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