Malicious PDF — malware analysis report

Static analysis result for SHA-256 22fc1d808107f2d9…

MALICIOUS

PDF

99.6 KB
MD5: 69125fa1deb4d48df5963f273ef410a2 SHA-1: a5505e39f9ec35c68172b649a55f9502a622cd0a SHA-256: 22fc1d808107f2d9d6849d0c06a1521b779276fa6688b7a74d20b40cd24bdf47
136 Risk Score

Malware Insights

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

The PDF file 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 file is designed to deliver and execute malicious code upon opening. The embedded URLs, while not directly malicious, are associated with XFA form structures.

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
1f827abd44246edccd4457fee6a59d46de664efca9246d4a949a15c9e11cd21e		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101251 bytes

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