Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eeb92df7cef52db…

MALICIOUS

PDF

5.5 KB
MD5: 915d692396121b84c31f98d737d7f1a0 SHA-1: cb08dd99cc29c13e748e4220401e8885daa4af27 SHA-256: 3eeb92df7cef52db8979a3d82a92f0574936d343d5b357cde117d155a4241e78
206 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes the app.addToolButton/removeToolButton functions, indicating exploitation of CVE-2014-0496. The JavaScript stream is obfuscated and likely serves to download and execute a secondary payload. ClamAV detection as Pdf.Dropper.Agent-6333539-0 further supports its malicious nature as a dropper.

Heuristics 9

  • app.addToolButton/removeToolButton — CVE-2014-0496 critical CVE exact CVE_2014_0496
    PDF JavaScript combines app.addToolButton() and app.removeToolButton() with heap-spray shellcode markers — the public Adobe Reader/Acrobat ToolButton use-after-free exploit shape for CVE-2014-0496. (matched in decompressed stream)
  • ClamAV: Pdf.Dropper.Agent-6333539-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-6333539-0
  • unescape() call high PDF_UNESCAPE
    unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/2.6/
    • http://www.xfa.org/schema/xfa-template/2.6/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0005_000.js
3c3e8e4094c912aad9bde495176874b36e385a68edcf4a5262d981a83ad2527f		 pdf-javascript-stream PDF /JS object 5 at offset 0xFE 4665 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 14 eval/decoder/string-building token(s).

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