Malicious PDF — malware analysis report

Static analysis result for SHA-256 38dc92bff0d68a96…

MALICIOUS

PDF

99.8 KB
MD5: ccea39ff75e74ab8e9de4cc8bd2387f2 SHA-1: 2017a1145b9e7a1954ec858a253a40d8b7b8e444 SHA-256: 38dc92bff0d68a96aea0cb3e2b4fb4662bb21ec1aee19707b892cecc2f0097e6
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF T1059.001 Command and Scripting Interpreter: PowerShell

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component via an XFA form. The embedded script payload within the XFA form is designed to execute arbitrary code. While the script itself is obfuscated, the critical heuristic firing indicates it's intended to download and run a second-stage payload, leading to a high confidence in its malicious intent.

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
6a2f5990d162d0e598bc158fec3c4160b7c977d3a24784398b0dd9cfb8426d53		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101477 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.