Malicious PDF — malware analysis report

Static analysis result for SHA-256 825559b57c9294df…

MALICIOUS

PDF

99.4 KB
MD5: 0e7baa13be8af0ea5fd5efbdbc772c76 SHA-1: 04e39b317a7f981bc651f6c97ac8bef9d6d394f7 SHA-256: 825559b57c9294df31d2fd769d69c84589e3010ad8afb20e0d41ef9fbf37937f
136 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's XFA form processing. The heuristic firings indicate an embedded script payload within an XFA form, which is characteristic of exploit delivery. The script is likely designed to download and execute a second-stage payload, although the specific details are obfuscated. The embedded URLs are related to XFA schema and are not directly indicative of malicious activity.

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
5c750d063aa809d71fd82a993bbc190affa2acd1d70f79767a7466075c63896e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101080 bytes

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