Malicious PDF — malware analysis report

Static analysis result for SHA-256 8622ebe299c4db4c…

MALICIOUS

PDF

78.7 KB
MD5: 0b12850609029fe0112c6209f42f9194 SHA-1: 7d2cf62ecb157a25f0969fe54dd01ecc146f92ed SHA-256: 8622ebe299c4db4c9654f1e5f108f33994fd3e50f664a7f8e2e9cabfbced26a7
116 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, which is a critical finding. The exploit targets XFA forms within the PDF, indicating an attempt to achieve arbitrary code execution. While no specific malware family is identified, the exploit mechanism is clear.

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
6cd1277dd0e1027d7dc9c7de14989699143cf53b3637d28e80872b010d5c2be5
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79866 bytes