PDF malware analysis — malicious · 24624f7a92444f4b

MALICIOUS

PDF

6.5 KB Created: 2012-11-05 20:12:24

MD5: fc055b23e38d8fade18ab3e8de1794a9 SHA-1: 2f59330bf3ae45f0f42ffbb30ecfc941c4a8fbe7 SHA-256: 24624f7a92444f4baf9a795fd795c7fa08cdd342a2552e448adee708dc05b958

68 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell 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 file 'embedded_file_obj0001.bin' is likely the second-stage payload. The document body text appears to be corrupted or irrelevant, providing no direct clues to the 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_obj0001.bin` `e5e8f49752a95bf023f78cfdd2e5bd8094a172d1fcbd3b407ab197c1e5bee879`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x8FD	6917 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

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