Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb964bd161daa50…

MALICIOUS

PDF

87.1 KB
MD5: 255ca858655c0cf64841c41a6aba6b3e SHA-1: fbd4d7aad51b56ab2f52de3c7273c6528a843f32 SHA-256: 6cb964bd161daa5015a62f6a3d2d197fffcecf3db8d8aa434412b68f81b93f06
116 Risk Score

Malware Insights

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

This PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. The exploit targets client execution to likely download and run a secondary payload. The ML classifier strongly indicates malicious intent, and the embedded file further supports this.

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
c78945dfa90e792d822237b2a862a47634ba191fb20f56a28ad1335f783eeb1f
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 88457 bytes