Malicious PDF — malware analysis report

Static analysis result for SHA-256 f869ffd32913c46c…

MALICIOUS

PDF

99.7 KB
MD5: 56f41a8a8177b3e820657de3f3179e6a SHA-1: 6c7561294b12fad93579117d9e0c8c0c6f67870d SHA-256: f869ffd32913c46c687d600e3253139ddc67ec8247cd6db0d87ba9d1537794e0
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an embedded script payload and exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This indicates the file is designed to deliver an exploit. The embedded script and XFA form suggest the exploit likely attempts to download and execute a secondary payload, although the specific script content is too obfuscated to determine the exact actions. The presence of multiple XFA-related heuristics reinforces this conclusion.

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
8345d6aefc42826fee36d55f6fd9a260c32a09eb3c9b4e8fcb75b7eea9ab3e42		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101350 bytes

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