Malicious PDF — malware analysis report

Static analysis result for SHA-256 84e5ddbe98181578…

MALICIOUS

PDF

99.8 KB
MD5: 1a5c53ac1b304521900db7c6b964950e SHA-1: 1de99bb01a8f4b6fd5cbaa78d3f78acd7639a334 SHA-256: 84e5ddbe981815788f3e11a602cb0adf2adce9c322a8a159a11caa361e9afddb
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF file is flagged as malicious by an ML classifier and contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. The presence of an embedded script payload further suggests that the exploit is used to download and execute additional malicious content. No specific family could be identified, but the exploit vector is clear.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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 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
ef6fd7b1d732c3515cc3130d3003ea3d927f92f0620de34b0032be47f6b647d0		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101437 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.