Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff39fcd371f3351…

MALICIOUS

PDF

50.4 KB
MD5: 5f1f8b5bd7bffeb1befe34df59fe9cdd SHA-1: 12d21919c08bd0e029e4e335bcdea15414ef367f SHA-256: 7ff39fcd371f33519a7161ab00ae166ff9656a70afd20f1d3a1296222de36c0d
196 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1559.001 Component Object Model Hijacking T1059.001 PowerShell

The sample is a PDF document that leverages the CVE-2010-0188 vulnerability in Adobe Reader's handling of XFA forms. The heuristic firings indicate an embedded script payload within an XFA form, designed to exploit this known vulnerability. The embedded file and script suggest the document's primary purpose is to deliver and execute a secondary malicious payload, likely leading to further compromise.

Heuristics 7

  • 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.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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
0ecea5804e4b542542d942970e61d1bd80cda25b1e2f5f55291e29b6b7387729		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 50879 bytes

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