PDF malware analysis — malicious · 03062cacff3cc600

MALICIOUS

PDF

11.8 KB

MD5: 783bca8b0e7d0d40288387369b6cf912 SHA-1: 2006e48789d013d195fe8fbb5f7d69e086555402 SHA-256: 03062cacff3cc6002e38fe5dbd9db46c3e482b49c85f721acede7ec7fd167c95

118 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including ClamAV detection as 'Pdf.Exploit.Dropped-78' and a high ML score, indicating it contains an exploit. An embedded file artifact was also extracted, suggesting it's used to deliver a secondary payload. The benign URLs present do not appear to be related to the malicious functionality.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

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.
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.
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` `13b302e8997629481c9358b71f77c471206458974afe4f0518ff7526085032d2`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11311 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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