PDF malware analysis — malicious · 4230dae7b309a233

MALICIOUS

PDF

7.4 KB Created: 2012-08-04 17:40:47

MD5: 9f9b6795716660170378561e2496d22f SHA-1: f8115f77f3488df8a4a8f77d9313587e11756fd8 SHA-256: 4230dae7b309a233376dfce99267adade1c6c0f5c363f68eb19a2e18e3c69099

68 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1553.005 Mark-of-the-Web Bypass

The PDF was flagged by an ML classifier as malicious and contains an embedded script payload. The embedded file artifact, 'embedded_file_obj0011.bin', is also suspicious. The presence of XFA forms and embedded files suggests an attempt to exploit PDF vulnerabilities or deliver secondary payloads.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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
`embedded_file_obj0011.bin` `0b1634eca1492b25a85a17cefe6a65380a35c16436a47375faa0d05ad3d34e26`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0xB97	6934 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

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