Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9ec879259fb7f9…

MALICIOUS

PDF

99.7 KB
MD5: 083b8ab944f8d463b78897a16adc7610 SHA-1: eb3f29a68ab1d3a6e916282fed82491bf736917d SHA-256: ae9ec879259fb7f90c2c70fd091182a8e288eb89a44acbc1d1c8b8bec0e9d81c
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution

This PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The exploit is delivered via an embedded script within the XFA form. The script payload is designed to execute arbitrary code, likely leading to further compromise. The embedded file and script heuristics confirm the malicious nature of the document.

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
2fa235c547dad16b88085c07c814f19e4cffcfdb62298ffab35fa647ec1fc08f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101344 bytes

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