PDF malware analysis — malicious · ac8ca31b930e9887

MALICIOUS

PDF

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

MD5: 2ad4b514ed6aa35ea34e536e74e5f058 SHA-1: f6d2b2cdef2fd457ac12d4f1b99ce3008cb20d9f SHA-256: ac8ca31b930e988726e58a4613ce9850fbf1f936f571e74e732ec8004dd4edd9

70 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains an embedded script payload, as indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic. The ML classifier strongly flags this PDF as malicious. The embedded artifact 'embedded_file_obj0011.bin' is likely the delivered payload. The document body text appears to be corrupted or obfuscated, preventing a clear understanding of its lure.

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` `bdb7019279c5557955a0989af538ed7d402bdff4ef97a45657421f42e7476798`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0xB97	6910 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.