Malicious PDF — malware analysis report

Static analysis result for SHA-256 3354bf74cc463b4e…

MALICIOUS

PDF

99.9 KB
MD5: 2f4c6ed3b8c7ad09184b57ee15a78a4c SHA-1: 7f59a38522fea093def2603ba380dd2a695eb1fe SHA-256: 3354bf74cc463b4e39b711d28aa92ed8ad82973c12b6502df8c3317a04edba9f
138 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The PDF contains an embedded script payload within an XFA form, indicating an attempt to execute arbitrary code. The embedded script likely downloads and executes a second-stage payload, though its exact functionality is obscured. The presence of embedded URLs, while mostly benign or unknown, suggests potential communication channels.

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
56c86027114242fea79fff60c71b761e5469979aa57d542a6d5bae6cca80f293		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101500 bytes

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