PDF malware analysis — malicious · af04f2349fe7b7c6

MALICIOUS

PDF

14.7 KB

MD5: 66b9cfce7c910d4431380e4e21f8f527 SHA-1: 3fd515d79f6a3332a336955b4852602f4cdd03e0 SHA-256: af04f2349fe7b7c622adc24b1933e0214eca47ae24c0bcd1ee0a22bb3109918b

148 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic and confirmed by ClamAV detections (Pdf.Exploit.Dropped-78, Pdf.Exploit.Agent-36809). The presence of XFA form elements further suggests a complex PDF structure often used for exploitation. The embedded script is likely responsible for downloading and executing a second-stage payload, although its specific actions are not detailed in the provided evidence. The embedded URL is likely part of the exploit chain.

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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.
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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000329.bin` `c9821f54eed8c0531db9114b07346f96ad063ddc62fb12111bcd51ba2b0e2347`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14276 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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