Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddb15ee4ac53027…

MALICIOUS

PDF

39.8 KB Created: 2020-11-07 09:16:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-25
MD5: fd7af026ae877f031a095a5044f70489 SHA-1: 6d857331ed3afc20ffb6d4e58e26b11276306949 SHA-256: 3ddb15ee4ac53027b1b696daa8c54a3199905dbd23a0569b40f141912f5cf290
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffnew.ru/123?keyword=community+cloud+nist PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368229/normal_5f897cdf6273b.pdfIn PDF document text
    • https://votarozoxanobo.weebly.com/uploads/1/3/4/3/134315144/gabil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454429/normal_5fa0def91aee2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424013/normal_5fa624f145033.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370785/normal_5f8d45074ec5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5f9e26a027d47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372378/normal_5f8cc8843e936.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://sisiviweze.files.wordpress.com/2020/11/goresosuvufat.pdfIn PDF document text
    • https://lotifawaxoda.files.wordpress.com/2020/11/kuzakineruralawoz.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/invasive_aspergillosis.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/budozudijanobevexuvetibuk.pdfIn PDF document text
    • https://xasavibe.files.wordpress.com/2020/11/nojifebelatef.pdfIn PDF document text
    • https://lalibakorex.files.wordpress.com/2020/11/wasowisigota.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_off00005f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F42 4784 bytes
SHA-256: eb21f83f9cf7a5fb422c3488a5566355f3ec530a7e326abb921e1b1525353bdb
font_01_sfnt_off00006f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F81 10500 bytes
SHA-256: 56b50066023e006484c4b4f0af793547c4c4164a9f025d61586c36a0fc9ea6bd