PDF malware analysis — malicious · 2f9e2dfe70dcbfce

MALICIOUS

PDF

5.6 KB

MD5: 15230b5b71ced7648a89b43f006bf3f1 SHA-1: 695523e12d18d1eb5ce79aa3d280cf45714db8f8 SHA-256: 2f9e2dfe70dcbfcee3fe8e06cd9804f6435f1dff924bd57981fcbed4624126a9

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains an embedded JavaScript payload, indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic and the presence of 'stream_000_off0000069a.js'. The ML classifier strongly flags this PDF as malicious. The embedded script is likely responsible for downloading and executing a second-stage payload, contributing to the overall malicious nature of the document.

Machine Learning

Nyx PDF Classifier malicious score 0.9987

Heuristics 3

Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_000_off0000069a.js` `f66e5fccef7c1ea702660992dde6f3ae0c345e1b9206c36300e65dd6ee684f0e`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x69A	15169 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 long base64-like blob(s).

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