Malicious PDF — malware analysis report

Static analysis result for SHA-256 6842871459d8a792…

MALICIOUS

PDF

99.7 KB
MD5: eaeb433c9a8bb26152a34828cc2c4a97 SHA-1: b2638ad78f884cfd2b423a46013a92607f9c02ae SHA-256: 6842871459d8a79275813de9fc2b2ef19757c36c2ccc53a41eec145559acd3f7
116 Risk Score

Malware Insights

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

The PDF sample contains an embedded script and is flagged by heuristics for exploiting CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. This exploit is designed to achieve code execution on the victim's machine, likely to download and run additional malicious content. No specific malware family could be identified.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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
cfa552e17d09f0b7bf8b719ff90b120bca72dec4ba98ff649e318b01ff1f3e47
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101387 bytes