PDF malware analysis — malicious · 9ba88b9a6f749500

MALICIOUS

PDF

5.6 KB

MD5: d30d289928eaae8b65c4742d70e39de2 SHA-1: 7e2ca0c3eb109ab3cb3f822a3cb5c5d598b671dd SHA-256: 9ba88b9a6f7495009e5e58f7d74d040ce91023ec00576b146b5d7fac61fa8243

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains an embedded JavaScript payload, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic and the extracted artifact 'stream_000_off0000069a.js'. The ML classifier strongly suggests maliciousness. The script is likely intended to download and execute 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` `e46e331295fde7fbd777a40f615b8f74649600c758895763cf22dbdbcdbb6223`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x69A	15313 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 long base64-like blob(s).

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