Malicious PDF — malware analysis report

Static analysis result for SHA-256 131a0ba1f1f8eb9b…

MALICIOUS

PDF

99.8 KB
MD5: 0161dbcaf98ae71c29516ebe0b7194f4 SHA-1: 9f26ea35e2f43410f767f85e18683af31037b9a4 SHA-256: 131a0ba1f1f8eb9b5194ee5ced20127b1b5ef5ac5378650232096e3e742b8b0a
116 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit, targeting Adobe Reader. This exploit is designed to execute arbitrary code, which is often used to download and run additional malicious content. No specific malware family could be identified, but the exploit mechanism is clear.

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
5a3de9cea6b90955986dd1c7e43da46361fccccb0a60c24970388b5047eecfd8
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101467 bytes