PDF malware analysis — malicious · fdd3214ab1a7112e

MALICIOUS

PDF

19.3 KB

MD5: dfac25b7afbacea410fe099945ec7790 SHA-1: 8718a4dd752c5c439b8c780bf6955ab6dce11962 SHA-256: fdd3214ab1a7112e9058a0738994f59bcacf58a09053e7a3ee0cc1616e7b1cd7

128 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating it contains an exploit. The presence of an embedded file and an embedded script payload further supports this. The primary IOC is the embedded file, which likely contains the secondary payload.

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 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
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` `02cad2596b5982fd37ff8adc479d53948b7041f93c3e4eea71cdead2464ee686`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	18963 bytes

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