PDF malware analysis — malicious · d8ef0dd75d2525c5

MALICIOUS

PDF

16.2 KB

MD5: 4ba24e87df19d2cd0052544c2cc52c45 SHA-1: ee46c009f91912cf159e2e13a5f82a3e4c533749 SHA-256: d8ef0dd75d2525c5fc72c15e04860ccfcdded54832eb960cc8ad831e2709f601

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The sample is a PDF file that utilizes XFA forms, which are known to be a vector for exploits. Static analysis detected a critical heuristic for CVE-2010-0188, indicating the exploitation of a vulnerability in Adobe Reader related to XFA image processing. An embedded script payload was also found within the PDF stream, further supporting the malicious nature of the file. The script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured by the PDF structure.

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_00000359.bin` `3b88de5b31ceff792c9a37404d9add1339b5def856be001fddc2b3d9097cee56`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	15885 bytes

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