Malicious PDF — malware analysis report

Static analysis result for SHA-256 013f18cfa83b42d7…

MALICIOUS

PDF

99.8 KB
MD5: 109ff7c8287ec0b0dc95b80838a02413 SHA-1: cbec072cecb0d9843830d2ce0a10745af17796d4 SHA-256: 013f18cfa83b42d78da166366f5a6dc1c81f2c5226f012e5008ce280cb12c875
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1204 User Execution T1059.001 PowerShell

The PDF file contains an embedded script payload and exploits the CVE-2010-0188 vulnerability in Adobe Reader. This indicates an attempt to deliver and execute a malicious payload on the user's system. The ML classifier strongly flagged this PDF as malicious.

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 script payload in PDF stream medium 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 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 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
4cfb5e3e71ac8c59474387411b32780d57eb5e851b5d5142de3cd8a0be73ede6
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101435 bytes