Malicious PDF — malware analysis report

Static analysis result for SHA-256 7820423a83795e62…

MALICIOUS

PDF

93.6 KB
MD5: d5fbfae31c16d885141e512d60752bdb SHA-1: f1d540a6eda11e05e88f07145c18cebbd5216f53 SHA-256: 7820423a83795e62c783c80a87704171dceb66481bcbac502a58748b5e5f54ff
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is a PDF document 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. An embedded file object was also extracted, suggesting it may contain or be the secondary payload.

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
e1729c7ceb61e9545a71dc57aa9000cabda96367bc9791d01c1e6c7aa498b438		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 95093 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.