PDF malware analysis — malicious · 8a26b0833004c0a2

MALICIOUS

PDF

100.7 KB

MD5: f3dd1308e12be81ca8f227e4403ccc11 SHA-1: 00bf2b8457134e52d2faac4cfd17aef69e21c71b SHA-256: 8a26b0833004c0a232860a99450e33061136776e1de27ad81ad0e729b5637578

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains an embedded script payload and utilizes XFA forms, which are known vectors for exploitation. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured by the PDF structure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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.
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_pdf_script_00000246.bin` `3dab82ecae015e717a3422202e99995529cfaf697f3c9011633d4a28745b5770`	pdf-embedded-script	PDF raw stream script payload at offset 0x246	102374 bytes

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