Malicious PDF — malware analysis report

Static analysis result for SHA-256 29ba98eb3e4265b7…

MALICIOUS

PDF

79.2 KB
MD5: 5649016a0bf7a6e4f89af32ce88726c7 SHA-1: 84e8021c3a368af5a80befb53613b21e45994c2f SHA-256: 29ba98eb3e4265b7e1566d85a6f198afb0db329f982248fdf43635995224cf19
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 embedded script payload within the XFA form is indicative of an attempt to execute arbitrary code. While no specific family is identified, the exploit targets a known Adobe Reader vulnerability for initial compromise.

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
d426583f45f7559fa37bc6c374bb83859aff954e2cb1c516fa11154df55c03e4		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80335 bytes

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