Malicious PDF — malware analysis report

Static analysis result for SHA-256 db6a6231018f570e…

MALICIOUS

PDF

45.1 KB
MD5: 005b0e61ca6508bebee4c7da563b53f0 SHA-1: 0e9c8f8efc37d336c35aa7e6b00b46c672ff7c6e SHA-256: db6a6231018f570ec13bdb018dfa8dba13b78bc7b62bcfbf808d38b7cde0aecc
74 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged as malicious by an ML classifier and contains embedded JavaScript. The JavaScript action and embedded JS stream heuristics indicate that the script is intended to perform malicious actions, likely downloading and executing a second-stage payload. The presence of XFA form elements and ASCIIHexDecode filters further support the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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
  • 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/24444.6/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0011_000.js
684b219ec31d517d0d923860e55c62481aef7973585ad66ffeb574e0e7ece257		 pdf-javascript-stream PDF /JS object 11 at offset 0xA1C8 3902 bytes
font_00_sfnt_off00000449.bin
4f69fdbf43eabdd5abc64b7ad9a9f03684a5a3891541c393a6d57875ac98036c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x449 65932 bytes

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