Malicious PDF — malware analysis report

Static analysis result for SHA-256 1163dba26de8c278…

MALICIOUS

PDF

99.9 KB
MD5: b3d345d13c47dfb503ba5e50e3be900d SHA-1: bcf505d849947ea9303f2ff028f5e556ecce1494 SHA-256: 1163dba26de8c27883ca6ceb73d23fbe36dc5024e10be7c9379808be490cedfb
116 Risk Score

Malware Insights

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

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component, which is designed to execute arbitrary code. The ML classifier strongly indicates maliciousness. No specific family could be identified, but the exploit is the primary indicator of compromise.

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
d0435e3947dc4ccc477e51880494f5e6c34307f712dd00c01dc839dbda5bfce7
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101538 bytes