Malicious PDF — malware analysis report

Static analysis result for SHA-256 b29fb713b10fea8c…

MALICIOUS

PDF

78.8 KB
MD5: 22c541c2158d949d68b6a148890c69dd SHA-1: daff06a8d9c99ae931037f6764c4821860048baa SHA-256: b29fb713b10fea8cb6d4298fd6c1e74c6459b7686d3518b8f2bfe880da0a8a10
138 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF document that exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. The XFA form within the PDF contains executable script, which is characteristic of exploit delivery. The embedded script is likely responsible for downloading and executing a second-stage payload, although the script content itself was truncated and obfuscated, preventing a more detailed analysis of its specific actions.

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
79ed29f18b4805052ffdf2e93039889219b840aab20c6b6bcc2b9b672669cc1d		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79946 bytes

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