Malicious PDF — malware analysis report

Static analysis result for SHA-256 00c45cecd97e3ab0…

MALICIOUS

PDF

50.8 KB
MD5: d9e5cba59ccc8997e94057dcd3494b02 SHA-1: 0cc29c62e721b9f1c8bb26be056aa86a3bd16d4e SHA-256: 00c45cecd97e3ab00879f373b42cac7ea3ec08b54e3bcba851e7616d4fd71389
228 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Clickjacking T1059 Command and Scripting Interpreter T1059.007 Command and Scripting Interpreter: JavaScript

The PDF file contains embedded XFA (XML Forms Architecture) data which is known to be vulnerable to exploits. Heuristics indicate a critical vulnerability (CVE-2010-0188) related to XFA image exploitation and embedded script payloads. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URLs, while not directly malicious, are associated with XFA forms.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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
  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
2e8be0884a1f9a2462a6899a3c120e667d4d9f21c42f7d571366c52960fc06ba		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51215 bytes

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