Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2176bc7f33cb8e8…

MALICIOUS

PDF

99.8 KB
MD5: 09ebe14af787d157c9976a5abf5950e6 SHA-1: 05cd988e2fe1b0a4dbe6cddaa00ff30802deec2a SHA-256: d2176bc7f33cb8e8be42e3704f55be9dbd5cf88319a9cb22e47494e6f0eae8b7
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The heuristic firings indicate an embedded script payload within an XFA form, suggesting the PDF is designed to deliver and execute malicious code. The embedded URLs, while not directly malicious, are part of the XFA structure. The primary attack vector is likely a user opening the malicious PDF, triggering the exploit and subsequent payload execution.

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
44b17d393ba6d829a01cba8ad48c858a84b4e224bcd84d6993e13fa38cb9315d		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101414 bytes

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