PDF malware analysis — malicious · 0547200dcee789a4

MALICIOUS

PDF

11.6 KB

MD5: a16a8f25930107ac19bf036a39c9567c SHA-1: 68424b8ca9a011983d416b00f3b9d1e79d3e2a30 SHA-256: 0547200dcee789a40267a7d96183c2eaf6e1a5664743f5920d4d6e8146192136

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF sample contains embedded script content and is flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Dropped-78'. The ML classifier also strongly indicates maliciousness. The embedded file suggests a dropped payload, likely executed via exploitation of a client vulnerability.

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` `493168991c6fd021853251996fbc8baeb6f5177371e8091a14912d0b7e94d8cf`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11141 bytes

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