Malicious PDF — malware analysis report

Static analysis result for SHA-256 6722b96ee32e3d9e…

MALICIOUS

PDF

65.9 KB
MD5: a0515e0e37d99acc61ca5b00e1ab0ba5 SHA-1: bf4a2b007ff286dd8df010c1b66ae542030a09d9 SHA-256: 6722b96ee32e3d9e0519add123ebc37b3369365d81a9fa2318929c844511b7d9
156 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF document identified as malicious by an ML classifier. It contains an XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. The exploit payload is embedded within the XFA form's raw stream, indicating an attempt to execute arbitrary code. While no specific URLs or scripts were directly extracted for analysis, the presence of the CVE-2010-0188 exploit strongly suggests the document's purpose is to compromise the user's system.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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 risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • 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 script payload in PDF stream low 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 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
6b887c150b5ffe65280557ad8cfdbcf7156ee45745aa02eefa5a1e454c1fd412		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 66722 bytes

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