Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a3d4f08ea9397e8…

MALICIOUS

PDF

99.7 KB
MD5: b30c1810e1507d886a21a9b82b6db2d6 SHA-1: 9c6e0c45ff4770d7370dcbf335deca8c7ec26f18 SHA-256: 7a3d4f08ea9397e878c51245262a8fd4e7ad8abb9f22f87d02e3798584263e72
136 Risk Score

Malware Insights

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

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader's LibTIFF component. The XFA form within the PDF contains executable script, which is likely responsible for triggering the exploit. This indicates an attempt to execute arbitrary code upon opening the document.

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
b0ac4293acba4ad3607b32ea1525e692c0047319e5f80cdbab6d170e7a087d4b		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101326 bytes

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