Malicious PDF — malware analysis report

Static analysis result for SHA-256 17cf1d0f0c832306…

MALICIOUS

PDF

99.9 KB
MD5: 110540e394632f7b6dead3d7a0e13535 SHA-1: 399c77c82216e8a09a87acd0bef6242df314592f SHA-256: 17cf1d0f0c832306a081cdef7b090fc80f74a53e00e8b1cc02aef682a9b6f7d8
116 Risk Score

Malware Insights

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

The PDF file contains an exploit for CVE-2010-0188, targeting Adobe Reader's XFA form processing. This exploit is designed to execute arbitrary code, indicating an attempt at initial compromise. The ML classifier strongly flags this PDF as malicious, supporting the exploitation finding.

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
91faba21e9f57d487685413b1999de23c4ed6ec65651a2b947607491aa2a0251
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101590 bytes