PDF malware analysis — malicious · 11379ec9cd91ce79

MALICIOUS

PDF

12.7 KB

MD5: a6deff6a074c3e490b068af36fd7db43 SHA-1: 6650f80d14b4f3021e6f9ada0a881586d8f48907 SHA-256: 11379ec9cd91ce79674bb352629e05cb4e544b7087d8309257281454a1a09e8c

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF document is flagged as malicious due to the exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF handling. The embedded XFA script likely contains shellcode designed to be executed by the exploit, leading to further compromise. While the exact payload is not fully discernible due to truncation, the exploit itself is a critical indicator of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Embedded script payload in PDF stream low 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.
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` `2f160a6b6fad2a3ca1886baff074b0cffd98c8ce0d85dc6b27e4af4444ce8e88`	pdf-embedded-script	PDF raw stream script payload at offset 0x384	12276 bytes

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