PDF static analysis report

Static analysis result for SHA-256 cb9f38cd11a60a63…

SUSPICIOUS

PDF

104.0 KB Created: 2022-10-14 13:56:09 +00:00 Authoring application: chrihed (via PDF Master 1.0.1) First seen: 2024-01-03
MD5: 5f78d94a47ddb24029a155517d444286 SHA-1: d94e69cf6ce39b23fdb63d5b9bc0fe180f3c6a95 SHA-256: cb9f38cd11a60a63743b712f68632393bbb8d2f884d8a9cade46ed95fc2e5eec
44 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0004

Heuristics 3

  • PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • 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 http://seachtop.com/curser/htdocs/ZG93bmxvYWR8VjN4TkRsaWNYeDhNVFkyTlRjek16ZzBNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.MjAwMyBNZXR1IENoZW1pam9zIFZhbHN0eWJpbmlvIEVnemFtaW5vIEF0c2FreW1haSBhYm91dCBwZmVyZGVuIHN0YW5kbwMjA/carree=laughably=outermost.trich.rebeveling PDF link annotation
    • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x997 84652 bytes
SHA-256: 4afa1760e2b1183eedc04ece45e6ca142828bb1815d2ec2d36bc01b6dcd9471b
font_01_sfnt_off000091df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91DF 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261