PDF malware analysis — malicious · f64ec931b92913ee

MALICIOUS

PDF

7.8 KB Created: 2012-05-30 22:43:08

MD5: 168a0ac0fa16cda30531a296e8fe13ce SHA-1: 65b9890d8338436fb4e25a25b3696fc28b3e1ac7 SHA-256: f64ec931b92913ee3bd05d30a6b508fffaaa2930e6ac94fedb64c8a7bc17ea0c

68 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains an embedded file and an embedded script payload, flagged by heuristics. The ML classifier strongly indicates maliciousness. The embedded file 'embedded_file_obj0008.bin' is the primary indicator of a potential secondary stage download or execution.

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_obj0008.bin` `5634b9e8cdf8ca95610ec11b32c421d5d7be0886ef6aa731daf76288dcbab43e`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xCC5	7014 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

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