PDF malware analysis — malicious · 4793a95e967b597c

MALICIOUS

PDF

5.2 KB

MD5: 9fabfd8773c4a30be497238bdcf96dd3 SHA-1: 957bdb7166be215edbc6a948f36b726d443106f4 SHA-256: 4793a95e967b597cb2c0a87ad4a95f06fd76fbf20fff9cfc314bd44eb54d839f

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file was flagged by a machine learning classifier as malicious and contains an embedded JavaScript payload. The XFA form suggests a complex document structure often used to host malicious content. The embedded JavaScript is likely intended to be executed, potentially leading to further malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 0.9992

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_off0000035e.js` `ee10c2d61d1296ed815c296bfbc7ff4c1f374af6fcd54e54dc8fa902dbe0fee8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x35E	26401 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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