PDF malware analysis — malicious · ad880f8147400362

MALICIOUS

PDF

42.0 KB

MD5: 4f5d56179d09d3b1e6b1dc971f9eeff6 SHA-1: cfb1628d4af221d80d954340e257a542edd79391 SHA-256: ad880f814740036258bf9959a83bcb12ad4de22f569f06920430e74a8985b065

156 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV heuristic firings, including 'Pdf.Exploit.Agent-36830', strongly indicate a malicious PDF exploiting a known vulnerability. An embedded script payload was also detected, suggesting the PDF is designed to download and execute a second-stage payload. The embedded file artifact further supports this, likely containing the exploit or payload.

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` `dd317ca09b868047fb455e7dd4ea32082d39548120ca5f5d04baf182c91363ed`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42280 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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