PDF malware analysis — malicious · 7c6435c032657c07

MALICIOUS

PDF

11.7 KB

MD5: d4ccab545cda698991dc45c54574a569 SHA-1: 7e30dcd61fe58b9af2fefa016271dfcaab702c19 SHA-256: 7c6435c032657c07dcb8bdab6866195ea50f1b8b0f95191773ba6de29a68a992

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file flagged as malicious by ClamAV with the signature Pdf.Exploit.Dropped-78. It contains embedded script content and an embedded file, indicating it is likely designed to exploit a vulnerability and download a secondary payload. The ML classifier also strongly indicates maliciousness.

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` `366997b9b3891baab2c47ad742b519de88741e6d27a2ce0d2a1c9462939e8a08`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	11213 bytes

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