PDF malware analysis — malicious · 4824c281396cc845

MALICIOUS

PDF

42.4 KB

MD5: 5b57a3321a213da70b5e5531e4e6c223 SHA-1: af4fb62468b48fc045a5e18b18ddbb9c189ec59d SHA-256: 4824c281396cc8454cb5e85388f18c5cfabf72239dba95cce0ffd70b64b06c9a

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution - Malicious File

The PDF file contains embedded script payloads and is detected by ClamAV as Pdf.Exploit.Agent-36830. This indicates the file is designed to exploit vulnerabilities within the PDF reader to execute malicious code. The embedded script is heavily obfuscated, making its exact function difficult to determine, but the critical heuristic firings strongly suggest a malicious exploit delivery mechanism.

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` `bdabffabb77ecc549dabacade67fa4185ebabb3c6c8421a28a729333663077d5`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42635 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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