Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c23590a4b955ff…

MALICIOUS

PDF

99.8 KB
MD5: 55ce9fe5c71f94b54c4e858e637ba8c1 SHA-1: 269780cf1c8087c3d5c24bb17d340cf4417a9640 SHA-256: 07c23590a4b955ff40e9554b55c6c3ceb22fbb0b44a07244046de59706a0d5e8
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by an ML classifier. It contains an exploit for CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This exploit is likely used to achieve arbitrary code execution, enabling the download of additional malicious content. No specific malware family was 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
3124120cfcb1cafea531e373bda107ae771d4c2156b0fb01a7a62b16604a6bbb
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101439 bytes