PDF malware analysis — malicious · 4423720c324d7d1e

MALICIOUS

PDF

12.8 KB

MD5: 8ee80711a10291151d3b757e633cf818 SHA-1: c3abba2f3fc22a6d403282273c695b7d2ce0350a SHA-256: 4423720c324d7d1e3ad430d388101ccae99ecd5808ed0aec80a98db491f337a1

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 sample is a PDF file that leverages the CVE-2010-0188 exploit targeting XFA forms. The embedded script payload, detected by multiple heuristics, is likely responsible for executing the exploit. The presence of an embedded script within an XFA form strongly suggests an attempt to download and execute a second-stage payload.

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` `65c0f627c0b79f294c129c6b394460030e37d3d33cb0e2f8adc7c79a6ed3646c`	pdf-embedded-script	PDF raw stream script payload at offset 0x384	12312 bytes

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