Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e24bdd4f5b99873…

MALICIOUS

PDF

28.9 KB Created: 2020-04-11 08:13:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 764c91b998431fb56e912e6ef0ea8865 SHA-1: 0c658dff4a78a0eef7aad479d121b13394c0c114 SHA-256: 9e24bdd4f5b998738efa5c66562ae1f891c2f3c0a291f8374aceec7bfb982f81
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution mechanism. The document body, though heavily obfuscated, contains some of these URLs, reinforcing the link farm attack pattern. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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 http://mta-sts.mx.grandsalinelibrary.com/uploads/1/3/0/6/130620572/130620572.html#performance+ford+lincoln+bountiful PDF link annotation
    • http://deborahmolsberry.com/uploads/1/3/0/2/130271113/e885dfd2e.pdfIn PDF document text
    • http://hottbobs.info/uploads/1/3/0/6/130639609/suvobagika.pdfIn PDF document text
    • http://thewritingrocks.com/uploads/1/3/1/4/131437725/27e00e7e0aa4.pdfIn PDF document text
    • http://woodyhotels.com/uploads/1/3/0/2/130289340/nirifegazulovas.pdfIn PDF document text
    • http://jhrpropertyltd.com/uploads/1/3/0/7/130775403/bizosovejagufugo.pdfIn PDF document text
    • http://apexppt.com/uploads/1/3/0/8/130813997/zigivirafun.pdfIn PDF document text
    • http://arlinex.com/uploads/1/3/0/5/130588913/9533813.pdfIn PDF document text
    • http://fakartstore.net/uploads/1/3/0/6/130621153/garapuminaja.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EDB 7616 bytes
SHA-256: 3ffb5f2c7da2f0d6ac8712d405e7ceec6590d02351f5511dd62885c49de4ad1a

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