PDF malware analysis — malicious · 54ffea1b66cfedc0

MALICIOUS

PDF

73.4 KB

MD5: 815f61e38c95fc0b5a7264704e0b8419 SHA-1: b9d171790ada433ed64df71f03f80abf5e98e3e5 SHA-256: 54ffea1b66cfedc092fad843aca025d8608df4c7a2f4204d929b140128a8aea0

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1566.002 Phishing: Spearphishing Attachment

The sample is a PDF document that leverages the CVE-2010-0188 exploit targeting XFA forms. The embedded script payload, identified by the PDF_XFA_SCRIPT heuristic, is likely responsible for delivering the malicious payload. The ClamAV detection further confirms its malicious nature. The embedded URL is likely related to the XFA template but does not appear to be directly malicious.

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_0000034e.bin` `622728ff02b7fcb61cf0359c3eee4a45efd510d53f4f8286f2df44640292aaaf`	pdf-embedded-script	PDF raw stream script payload at offset 0x34E	74422 bytes

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