Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e676b0188b853b3…

MALICIOUS

PDF

93.7 KB
MD5: c507f51b2007dfe57229480a7834b72c SHA-1: 3c174ceef2303f328971be89aa6bf3c9ee36ad44 SHA-256: 5e676b0188b853b3c07927a6054c74717e7c4ab2b5406c81b8ef305f4331b305
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF file identified as malicious by multiple heuristics, including a critical detection for the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. This exploit is designed to achieve arbitrary code execution. While no specific URLs or scripts were directly extracted and analyzed for secondary payload delivery, the presence of the exploit strongly indicates an intent to compromise the user's system.

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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 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://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
59e28e689d9dfef7a97a7697e3db6b7fc394bf322a3e643659bae7583b04083e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 95157 bytes

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