Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0ed849aef42df3f…

MALICIOUS

PDF

99.9 KB
MD5: 1d06b2758fce7aa365e1b6e6cc5d86e4 SHA-1: c8911dd229e34deb67fdbcc8bf23f533e1624648 SHA-256: b0ed849aef42df3feed076f15b1b2621ea289ba6a2d52e9987888c54abc66cdd
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF

This PDF file is malicious, leveraging the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. The XFA form contains executable script, which is a common technique for delivering exploits. The embedded script payload is likely responsible for downloading and executing a secondary stage, although the script content itself was too obfuscated to fully analyze. The presence of the CVE-2010-0188 exploit and the embedded script strongly indicate a malicious intent to compromise the user's system.

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
782a2faf17f532c718065d062f2cdbb54bd90b9a2dfbaa0fcfc191658b0e0537		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101504 bytes

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