PDF malware analysis — malicious · 70ea7a6155943e37

MALICIOUS

PDF

12.7 KB

MD5: 91549f186b41c37e19b3b8c50f629729 SHA-1: ad070f78f1a4b791349557a5fbc7ae0d8c565eef SHA-256: 70ea7a6155943e37f65962a199e866c6d4b2e02bb6843f51db7a9a054b552e70

208 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded XFA (XML Forms Architecture) content which is known to be vulnerable to exploits. Specifically, the 'CVE_2010_0188' heuristic firing indicates exploitation of a LibTIFF vulnerability within Adobe Reader. The embedded JavaScript, though obfuscated, is likely responsible for executing the exploit payload. The presence of the benign XFA schema URL is noted but does not detract from the malicious nature of the exploit.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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 risky executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
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_00000359.bin` `cec301714878c7825615a5442ed331a56c62894fad2b9a98b67afc2f6b550f4b`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12288 bytes

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