Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0c393646b8f03c9…

MALICIOUS

PDF

69.6 KB
MD5: 36096fabf6c103c38197056ce853f5fa SHA-1: b1e493194356eec2db5c3fd58c6618ccbe1f1034 SHA-256: e0c393646b8f03c95d0852ed3267d4f1fc7312ed865fc6b875ebac4bdc847683
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Attachment T1059.007 Command and Scripting Interpreter: JavaScript

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. Embedded within the XFA script is JavaScript code that is likely intended to download and execute a second-stage payload. The embedded file artifact further suggests the presence 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
a2f1a2d5fff779de1be0982f5155f367b56834c02b70cdf93893444905b5159a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 70474 bytes

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