PDF static analysis report

Static analysis result for SHA-256 f59dce35b0dadef6…

SUSPICIOUS

PDF

42.3 KB Created: 2020-11-09 10:46:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d737b2f4cd57b754604fb32c311176e0 SHA-1: 9bb68e953be948d787f364e0c8ba6ddad2f027ae SHA-256: f59dce35b0dadef68f7ce18a6eeae3e375c354e0203b73b01e95b70426da3e90
36 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://trafffe.ru/aws?keyword=sixteenth+note+worksheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373301/normal_5f8cce9a840b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388416/normal_5f8f1e53dc180.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378606/normal_5f8e5579bd402.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368748/normal_5fa103cc8e5ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416665/normal_5fa17c2581e2e.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/9ba89f1e-a443-4fd8-a35d-974bcb781c67/would_you_rather_math.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12c2279d-786b-4932-a38f-6491a899eae7/77201450218.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88af9965-9d91-4efa-b40c-6b188f6d5d65/gewovar.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/98821586204.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7da24b11-6c90-4b73-9292-ae49494ea4bd/jixopetefulejeledax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b569fad1-d397-4383-964b-6b6fc7b2f053/zopiwiwul.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6122 4860 bytes
SHA-256: 436a07393f9913ce372703e9c67b10adec898ea82757e6fc88a9951851b9e540
font_01_sfnt_off000071bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BB 12696 bytes
SHA-256: 52d48c1f68647c22325db03026db192cb4fdee4629af0a307ee7606c054d8dac

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