Malicious PDF — malware analysis report

Static analysis result for SHA-256 b408d9a9ea5cfce5…

MALICIOUS

PDF

99.6 KB
MD5: d0633c41730084a121d6c06548a0e8e4 SHA-1: 9622cc7356496d55ae8343c73cbaa7e3b9456f2f SHA-256: b408d9a9ea5cfce592e1e67bd46b3871bf1f4cddd942dd141b9ce514034a5759
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter T1059.007 JavaScript T1190 Exploit Public-Facing Application

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit, indicating it's designed to compromise systems running vulnerable versions of Adobe Reader. The embedded script payload and XFA script firings confirm the presence of malicious code execution capabilities. While specific family attribution is not possible, the exploit and embedded nature point to a downloader or dropper.

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
e9498c0e9f81bb156f0070d008dbdad802c16e43cb29b6de7d37712c4c938230		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101251 bytes

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