PDF malware analysis — malicious · c86bf484231c2d38

MALICIOUS

PDF

36.9 KB

MD5: 846f70ecf91c9777b7219033cfdf7358 SHA-1: f89923d088d8f5bb249210697f98f30dd331acf6 SHA-256: c86bf484231c2d38f6fea388ccfd1661d997bd2123a2434f8b268c4620b69622

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains an embedded script payload, indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic. ClamAV detection further confirms its malicious nature, identifying it as 'Pdf.Exploit.Agent-6136306-0'. The embedded script is likely responsible for exploiting a vulnerability within the PDF reader to download and execute a second-stage payload. The presence of XFA form elements also suggests a potential attack vector.

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000238.bin` `915331696eeb05505cf8a3446e5d8fa61e65638771f14dc1451fbf25d58657ab`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x238	37762 bytes
Detection ClamAV: Pdf.Exploit.Agent-6136306-0 Obfuscation or payload: unlikely

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