PDF malware analysis — malicious · b1e780da09984c54

MALICIOUS

PDF

19.0 KB

MD5: 9c4df4f0a0f4724238cb55a981ce4b16 SHA-1: b1641e6b847d6922178e58a99b4068d1065dad2f SHA-256: b1e780da09984c5465dee9a89c672ac69615b2b67cce841c11e8d6a05ac26e7d

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating it contains an exploit. The presence of an embedded script payload and an embedded file suggests it is designed to download and execute a second-stage payload. The embedded URLs are likely part of the exploit or lure mechanism.

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` `ae9ec5df37085e9f9916854244a21be6cc5426a0fee9f48be34b068c73112e14`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	18663 bytes

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