PDF malware analysis — malicious · 9d0d3e0b162a1051

MALICIOUS

PDF

14.6 KB

MD5: 7e92bd3c69cd02b5c218a28eb7fc4d36 SHA-1: 033f322f0e085835facda3634ce085d936c9bcfc SHA-256: 9d0d3e0b162a105193c23303fd7f0675b35675962259eeefd874e77e1bdd3dd2

148 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious Attachment T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains an embedded script payload within an XFA form, as indicated by critical heuristic firings. ClamAV detections suggest it's a known exploit dropper. The embedded URL, while benign-looking, is present within the document structure. The primary attack vector appears to be leveraging the XFA form to execute a malicious script, likely leading to the download and execution of a second-stage payload.

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` `df852e35378eaca7cfe163be09751c90f58d5791df71ba643362314da1f02fe3`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	14216 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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