Malicious PDF — malware analysis report

Static analysis result for SHA-256 008141bd19e889c4…

MALICIOUS

PDF

78.9 KB
MD5: 0dcbdb5f17a21ff75912bebf991bbbce SHA-1: 5ef0bf09b61fbc4acf1ce0ae22a3bf9719292634 SHA-256: 008141bd19e889c4347d3f1ae20df9e7e8cdc4026281fd9932fa0d284c95cbde
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment T1190 Exploit Public-Facing Application

This PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The critical heuristic indicates the exploit payload was decoded from a raw stream, suggesting an attempt to execute arbitrary code. The presence of an embedded file and script payload further supports this, likely for downloading and executing a secondary malicious payload. The embedded URLs are not directly actionable as IOCs due to their benign or unknown reputation.

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 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
ebcbb06ff933b9cc20441ba768ad594b84842363deccb4ecdd49f494fa4c7ed5		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80093 bytes

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