PDF malware analysis — malicious · 8d4c30dda99090c6

MALICIOUS

PDF

42.4 KB

MD5: 4d882c501cc65438e4c03c594ddd457c SHA-1: 77dc534e688a1bf1258441addf9745f41b578405 SHA-256: 8d4c30dda99090c65e2735f6b2036a49773c437b8eea8743459456d2d2203354

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36830, indicating it contains an exploit. Heuristics confirm the presence of an embedded script payload within a PDF stream, which is a common technique for delivering exploits. The embedded script is likely responsible for executing the malicious payload, although its exact function is obscured by obfuscation.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
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.
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` `f46e7f3007f733318b69cbd582bf29711749f9374baf236a05e1ca8d1ebf503f`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42698 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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