PDF malware analysis — malicious · 8fe8b94381c8365f

MALICIOUS

PDF

12.8 KB

MD5: 558f65d417e4e3daf9342111f5669010 SHA-1: 8527d5b414ed2ce1a0bf0629b17037a5f27918ba SHA-256: 8fe8b94381c8365f9b4a1bd1a14fa811ecd08a328cbb2b9b7a4147d0896e1c3d

188 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit, a known vulnerability in Adobe Reader. The embedded script, likely written in JavaScript or a similar language given the XFA context, is responsible for executing the exploit payload. This payload is designed to download and execute a second-stage malicious file from a remote source, as indicated by the embedded URL. The ClamAV detection further confirms the malicious nature of the file.

Heuristics 6

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
XFA form contains executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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_00000384.bin` `96f993859f54d4252e054c08526d5af9f2a24a63f24e09c186de894c1c26481a`	pdf-embedded-script	PDF raw stream script payload at offset 0x384	12324 bytes

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