PDF malware analysis — malicious · 6f61d1dc2345f484

MALICIOUS

PDF

11.8 KB

MD5: bf5ee19a23fc929d8148c0f36db3b0e4 SHA-1: a03066f0ca6b918aa03d91e170eb9a4c44b2f974 SHA-256: 6f61d1dc2345f4846725a2cc697da44831c0ccda5892beb3d642296a894f96bf

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically detecting an exploit and a dropped payload. The presence of XFA forms and embedded files suggests an attempt to leverage PDF vulnerabilities for code execution, likely delivered via spearphishing.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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
Embedded script payload in PDF stream low 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 URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `635e5c189e7cc22914bff4ab30488de2007d09c8f58da5367d3a917cbd951397`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11333 bytes

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