PDF malware analysis — malicious · 4c2dda34a0edf1da

MALICIOUS

PDF

102.2 KB

MD5: a77401a9a1b5ad31a27fa23ebde1a1e2 SHA-1: 4f7639659c0a388d79cc9d42e0dd06b55672f378 SHA-256: 4c2dda34a0edf1da538a08431c71fb25e680d5c7c82acaf58d98282dfb6dd7d8

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment

The sample is a PDF file that leverages XFA forms, triggering critical heuristics for CVE-2010-0188, an Adobe Reader LibTIFF XFA image exploit. This indicates the file is designed to exploit this specific vulnerability upon opening in a vulnerable reader. An embedded script payload was also detected within the XFA form, suggesting it's used to deliver the exploit's secondary stage. The embedded URL is likely related to the XFA template but is not directly indicative of malicious infrastructure.

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_00000346.bin` `5640b99a061e7cb300ea9273c790e7e69f34fafb0723501048a2dccbd58134ae`	pdf-embedded-script	PDF raw stream script payload at offset 0x346	103956 bytes

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