Malicious PDF — malware analysis report

Static analysis result for SHA-256 f85ba8702c648e02…

MALICIOUS

PDF

53.0 KB
MD5: 34a5953fd9f2c5870c2ce28a5a8b6a06 SHA-1: a7390b31d92730549ddf4d6a0c56290d3b1cc04d SHA-256: f85ba8702c648e027094e9fa651ba214452cf8a463b7900995d309d2de398273
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 heuristic, indicating it exploits a vulnerability in Adobe Reader's handling of XFA forms. The embedded script is likely responsible for executing the malicious payload, although its exact function is obscured by the XFA structure. The embedded file artifact further suggests the delivery of additional malicious content.

Heuristics 6

  • 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.
  • XFA form contains executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • 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
deef259d0bbf37b70876574e592fb4049d03f1be705de4040145a25d6aec56f7		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 53529 bytes

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