Malicious PDF — malware analysis report

Static analysis result for SHA-256 37131854b4939328…

MALICIOUS

PDF

43.0 KB
MD5: cedc8e8c7db4a7d97177f44ce3be802e SHA-1: 23c4a0a386bfbf38863e56c176a4e7ecbfc0f80e SHA-256: 37131854b49393288f9e6f4c18f3fef7cbe25b1febb34fcc60c432191accc277
66 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_UNESCAPE. The extracted artifact 'javascript_obj0013_000.js' is suspicious due to obfuscation indicators. The JavaScript likely attempts to download and execute a second-stage payload from a remote source, which is a common technique for malware delivery. The document body itself is heavily obfuscated and does not provide clear user-facing content.

Heuristics 6

  • unescape() call high PDF_UNESCAPE
    unescape() found — often used to decode shellcode in PDF JS exploits
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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://www.bitstream.com
    • http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/2.6/
    • http://www.xfa.org/schema/xfa-template/2.6/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0013_000.js
037dbe9421435caf4f472e4e9110b59eb54cf190923e84b291d2f80cd5e5402a		 pdf-javascript-stream PDF /JS object 13 at offset 0x98D5 3979 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
font_00_sfnt_off00000352.bin
59213f27ec1b11ed95d4f67a3c94daae1e4ee1595f299bd9caefb5dd2ef7e8e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x352 38192 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.