PDF malware analysis — malicious · 1efa54fbe201fbef

MALICIOUS

PDF

42.8 KB

MD5: 488485a35e094d74beebe86e85237feb SHA-1: 2d99b2322865b5b112cc5032207b888f20bffe99 SHA-256: 1efa54fbe201fbef00966bc20ed643e9833ccd21a4a14b290b95cdbf83470b0f

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution

The PDF file contains embedded script payloads and is detected by ClamAV as Pdf.Exploit.Agent-36830. The embedded script is obfuscated and appears to be designed to download and execute a second-stage payload. The presence of embedded files and scripts strongly suggests a malicious intent to exploit vulnerabilities within the PDF reader.

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` `6ab016cf804dbb638c0e8c11b0a9a2393cfa312829d1924a988601bffafa28e4`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	43099 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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