Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d17f5ef5e35aa99…

MALICIOUS

PDF

64.0 KB Created: 2021-02-26 20:34:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4e5a64ffc41a4e3ba2de939e4c80be63 SHA-1: 26c8a16999a584fc40f0803461685e1c3a0e3f27 SHA-256: 1d17f5ef5e35aa9982ef7825a115cb70c740c82df58db1983a63857e722d48a3
124 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, many pointing to disposable domains, and a high heuristic score from ML_NYX_PDF_MALICIOUS. The document body, though heavily obfuscated, suggests a lure related to 'typography design free download psd'. The presence of external URIs and the link farm heuristic indicate an attempt to redirect the user to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9679

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
  • 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://mezovuduw.ru/award?keyword=typography+design+free+download+psd PDF link annotation
    • https://fijomenameti.weebly.com/uploads/1/3/0/8/130874411/vamaro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463825/normal_5fd64b156dd35.pdfIn PDF document text
    • http://ludirobus.getenjoyment.net/sigiloxedarenukavewir.pdfIn PDF document text
    • http://nibewubixela.getenjoyment.net/tugumoparavovukemexozaw.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/bevimonevufenojunobisuze.pdfIn PDF document text
    • http://fisujerekuvij.getenjoyment.net/bissell_pet_pro_crosswave_2306.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470532/normal_60046d6b00572.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426571/normal_5fc9f1e02b796.pdfIn PDF document text
    • https://doxifivot.weebly.com/uploads/1/3/4/2/134235468/ec7446c7c89309.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/toliwudalamem/wavelet_transform_book.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/19924976969.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/venumojasulubikuguxadasi.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/bomberman_online_multiplayer.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/17867541412.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDF 5444 bytes
SHA-256: 89ef0229d5849866ca0d908eca15c63d8289e0eb4d5bb67f74a254e066a3dc8d

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