PDF malware analysis — malicious · d86443a06be57e8f

MALICIOUS

PDF

42.5 KB

MD5: 3fc1716616d1e09d3e95ac51855f16fc SHA-1: fbbcd2a87a463c3b2161bb811532e5ef826b5be8 SHA-256: d86443a06be57e8fb2d13154b533134b26b4c5529aa50f672600b32ec0ae2fc3

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution

The sample is a PDF file detected by ClamAV as Pdf.Exploit.Agent-36830. It contains an embedded script payload and an embedded file, indicating an attempt to exploit a vulnerability and deliver a secondary payload. The embedded script is heavily obfuscated, making its exact function difficult to determine, but its presence alongside the embedded file strongly suggests a malicious exploit chain.

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` `d571f6e8ef240be6e30670271603c2435719db1c57e5a250e993936975d79a13`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42737 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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