PDF malware analysis — malicious · 27315c6ffb158dde

MALICIOUS

PDF

42.3 KB

MD5: 7a203d715e8594c861694383005120b9 SHA-1: 53f440c84d1cc8999ead1cc374d5f59b6fbe15a1 SHA-256: 27315c6ffb158ddeae9380c8357833121f83e01668dd94d4780e2be754b16af0

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded script content, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. This script is likely responsible for exploiting a vulnerability within the PDF viewer to execute malicious code. The ClamAV detection of 'Pdf.Exploit.Agent-36830' further confirms the malicious nature of the file and suggests it's a known exploit. The embedded script's purpose is to download and execute a second-stage payload, leveraging the embedded URLs for this operation.

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` `7ab6928a46515d1240863f875c1fb9070854d608ba78c7536a717bbf02fd7551`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42613 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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