Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3babc990b9e1f16…

MALICIOUS

PDF

47.5 KB Created: 2020-11-08 02:50:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aaee236255e5848d045570dadf19fa5d SHA-1: 7898ec924caf4f13b2c647c172e691d3d4f081c7 SHA-256: a3babc990b9e1f16b28ff1b2c9fa0ff4ce2d71cc2adf25f76dd86c32345b5f3f
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by an ML classifier as malicious. It contains an embedded URL, 'https://traffset.ru/aws?keyword=the+kitchen+is+my+playground+blog', which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to contain this URL, suggesting a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffset.ru/aws?keyword=the+kitchen+is+my+playground+blog PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375887/normal_5f976d9742efb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369901/normal_5f89744563d1b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/792d3077-3297-4ccc-9879-9572c116cd28/66887740073.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05320e71-2b9a-4d0b-9246-d5977b9189b2/31518929665.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66e25d23-8e17-435a-b5cf-1ef72094a7d6/the_future_diary_season_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37e3e22e-d22d-4dc5-992c-df5fcdd1aead/tarexedawixosezajemobudak.pdfIn PDF document text
    • https://wufutav.files.wordpress.com/2020/11/85734965371.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bd9eb9f-9a18-47d2-a79f-42466d3d9650/molecular_models_lab_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73ebd206-eacd-4ff3-8860-55d1cbb3aaae/44909454280.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/77073782695.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dae8fb89-4b67-4bd4-9ef5-123795c4573a/24833412502.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_off00007a69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A69 5740 bytes
SHA-256: 2b135fb70a8705cf3d725ab1bddc00e21541e3bd5ad939aca172d24133186359
font_01_sfnt_off00008dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC7 10512 bytes
SHA-256: a58a3159a2b61beef47458c81b07afe1380b7b31f8846819778a7d23c758992c

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