Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d977d457b16d52…

MALICIOUS

PDF

99.9 KB
MD5: cd65f9efe4b3323dc10933026c289346 SHA-1: 2e6e38d1430415273d82663d03a33f3deaf08103 SHA-256: 69d977d457b16d529c43fd7b56c46987aabe2fa7389f40d0d6f37ac76bfd514e
116 Risk Score

Malware Insights

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

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, which is designed to execute arbitrary code. The presence of XFA forms and embedded script payloads further indicates malicious intent. The primary attack vector is likely spearphishing, with the PDF serving as an attachment.

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
bc22ce90db6411f5eac8d5615bdeb4cd6d9479077ccc7fa69b1b17f9f88b2ebf
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101505 bytes