Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b88413d41a1afc0…

MALICIOUS

PDF

99.4 KB
MD5: 403749d41b632cdb63ce67909b7b7ecb SHA-1: bdb7d0709124a07bc9ad8649719f363a79971719 SHA-256: 0b88413d41a1afc09aea076b8b9401564eaaea0ac97e2827bb0b87a71ab15d01
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, likely to achieve arbitrary code execution. The presence of XFA forms and embedded script payloads further indicates malicious intent. The primary attack vector is likely spearphishing, with the PDF acting 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
acedb0e1e3d35c9f7102a3a3a109bf46ddb21c026d388d44ddae9dab275f014a
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101015 bytes