Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ec013e7f41d723f…

MALICIOUS

PDF

99.6 KB
MD5: 6e80dddbc18491ad722e1fee7d07ed93 SHA-1: 9390183a8e9b0952d54736569f4bee1151ebde84 SHA-256: 5ec013e7f41d723f1a200e45046d0f8739860a74dbf5f46b0f9c496d0e65627e
116 Risk Score

Malware Insights

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

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability in Adobe Reader's XFA forms. This exploit is designed to execute arbitrary code, likely to download and run a secondary payload. The ML classifier strongly indicates malicious intent.

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
279e490f48c9d8890938ab6500c09874a4cd763f3cb664c77095ea14ce062104
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101246 bytes