PDF static analysis report

Static analysis result for SHA-256 ef8b99ad61c66069…

SUSPICIOUS

PDF

40.4 KB Created: 2021-05-10 10:23:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 10d6f5a487dc5d9d86870abda05a8a81 SHA-1: f9a15fa5b29d553b7748fdec339f9e722e396569 SHA-256: ef8b99ad61c660693040addadcf44959e266ea9c3a4b233074006d7b82c3647d
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1059.003 Windows Command Shell

The PDF document contains a lure to download a file, indicated by the 'SE_DOWNLOAD_BUTTON' heuristic and the presence of a call-to-action phrase. It also explicitly instructs the user to copy and paste content into a shell context, suggesting an attempt to execute commands via 'SE_CLIPBOARD_COMMAND_LURE'. The embedded URL points to a suspicious domain, likely hosting the secondary payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 https://netcdn.xyz/app/479516143/how-do-you-download-minecraft-for-free-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003652.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3652 26084 bytes
SHA-256: bc0f9d07245e40c1757de3b8fa7b55fe797d4eaee82b3493e6be5fff35c8c7e4
font_01_sfnt_off000071d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D0 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00007bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBA 18592 bytes
SHA-256: 2a21e4b2ab9716090f2a5c1341924f6b2e0694698660464b8cd18f144ea9cb6b

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