Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa7e4b1f74d7cf1…

MALICIOUS

PDF

99.8 KB
MD5: ffe9bc2301b32b668780072dc5a073b5 SHA-1: c8d0055789e7efaa6ac294f3e68e2fe83a343fa6 SHA-256: cfa7e4b1f74d7cf184d67c15ba9acfcbf6a8c906998a9e5353836aede2aa494f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. The heuristic firings indicate an embedded script payload within a PDF stream, suggesting the exploit likely leads to the execution of malicious code. No specific malware family could be identified, but the attack pattern is consistent with exploit-laden documents designed for initial compromise.

Heuristics 5

  • 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.
  • 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
f2204c9c6b45d04f7620d40b23298cfff603dd3dd8ed4f8cbe945a128e3d0e15		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101406 bytes

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