Malicious PDF — malware analysis report

Static analysis result for SHA-256 0026a49827f415c4…

MALICIOUS

PDF

50.6 KB
MD5: 25e702f8c6ffda7cc264b10d00a85541 SHA-1: 07a1e71c78457a916791d4216fb7a1ded737c22d SHA-256: 0026a49827f415c4d6ec631b70f56727ac915f218bc62dfb1a411eea3ab46bd3
188 Risk Score

Malware Insights

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

The PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader, as indicated by critical heuristic firings. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded file and script payload markers further support the execution of a secondary malicious component, likely a downloader or dropper.

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.
  • 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
5c2409830bdacb85ac53a7cdd7c204939e945cf5f4ca3472477c80a330dc4bfa		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51102 bytes

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