PDF malware analysis — malicious · d8e9b7dbd3156a54

MALICIOUS

PDF

101.9 KB

MD5: f8f533ca4bcdbff8dabbfd603a7e444c SHA-1: e25975684e0261436306fc52128b4940f7749ff3 SHA-256: d8e9b7dbd3156a5427ffe8caf71f320d40045b71bd4dc6bc5baa4d62d6e2fc4c

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution

The PDF file contains an XFA form which is exploited by CVE-2010-0188, a known vulnerability in Adobe Reader. This exploit allows for the execution of arbitrary code, indicated by the embedded script payload. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact function is obscured by the exploit.

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` `b3b3b5627e3540dcee41cfe5750d8c1269891804890729871095b5ac2e65e9d3`	pdf-embedded-script	PDF raw stream script payload at offset 0x346	103583 bytes

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