Malicious PDF — malware analysis report

Static analysis result for SHA-256 9edb68f86803a1b7…

MALICIOUS

PDF

99.5 KB
MD5: ff41f31dadafb52427a114700cefb5ab SHA-1: c2b454d249c99039b7aba280076e7bcbf7db8188 SHA-256: 9edb68f86803a1b7ec51668d80c5154444365964e8bd39e9624ab56d726b3405
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.002 Phishing: Spearphishing Attachment

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. This exploit is designed to execute arbitrary code upon opening the document. The presence of embedded XFA form data and a script payload further supports this attack vector. The embedded URLs, while not directly malicious, are related to XFA specifications.

Heuristics 5

  • 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.
  • 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
56f05d40fa07b2f02fd5267975f064c8cbcb7de5d887a4887f099ba613f54133
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101184 bytes