PDF malware analysis — malicious · 206add8f1ada29a9

MALICIOUS

PDF

7.2 KB Created: 2012-09-21 13:52:08

MD5: ce106ec802f8bd482874bf899af0ba52 SHA-1: 3c75eb20b4c7edc754b1b8a19df9407b1d4b153a SHA-256: 206add8f1ada29a93de15062e48808fe8a801ed9c34a39b3bc417febab9c5d6e

68 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF was flagged by a machine learning classifier as malicious with a high confidence score. Static analysis revealed an embedded file, which is a common technique for delivering secondary payloads. The embedded file itself was identified as a suspicious artifact.

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_obj0007.bin` `2e917625108957f8b28e6bc27b8c89eee96502346a2f18e0a3a685c3c99adfa3`	pdf-embedded-file	PDF EmbeddedFile object 7 at offset 0xB54	6948 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

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