Malicious PDF — malware analysis report

Static analysis result for SHA-256 61fc76a001560a8c…

MALICIOUS

PDF

79.2 KB
MD5: a930a25ae07ac812bb547cfed205d326 SHA-1: 98897b4d01dd7e21e0d49cabebaeba8350846d9b SHA-256: 61fc76a001560a8c886fb37be3b01e2f2e2f631ca28b4634dac6b5c1a260c6af
116 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code upon opening in a vulnerable Adobe Reader version. The ML classifier strongly flags this PDF as malicious. While no specific URLs or scripts were directly extracted and readable, the exploit itself is the primary indicator of malicious intent, likely to download and execute a secondary payload.

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
0750394f478c4d17bfccd8d19109752e68af719d0730171650b50e71f7aeeaae		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80305 bytes

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