PDF malware analysis — malicious · 40ae4665967b0b7f

MALICIOUS

PDF

42.4 KB

MD5: 60cb6d6e6efa4a7228148431c45b2400 SHA-1: 72674b90f5c7cd1f3025f1a5d880f7822c380803 SHA-256: 40ae4665967b0b7fd1774f692c99d7ebef20c10a7b8527d7e59af6a4bb91fcb1

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file was detected by ClamAV as Pdf.Exploit.Agent-36830, indicating it contains a known exploit. Heuristics confirm the presence of an embedded script payload and an embedded file, which are common delivery mechanisms for malicious content. The embedded URLs are benign or unknown, and the document body is not human-readable, suggesting the exploit is likely triggered by the file structure or embedded objects rather than user interaction with document content.

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` `a470ff7c7a5077f0b2114347cbe707ae1974509a5803d1ed354e7bdecec8ba9a`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42699 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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