Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a04f9e49161fc6…

MALICIOUS

PDF

99.9 KB
MD5: 1ec01986bf84b6e762b4f0fb6dde1fe3 SHA-1: 063da46e27fb9d1f0ba7ba1c1d4219adedfb0a1c SHA-256: 14a04f9e49161fc625b433a427e9bef2d1b8ac0d5a1515491dce5046c99f44f2
116 Risk Score

Malware Insights

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

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms. This exploit allows for the execution of arbitrary code, likely to download and run a secondary payload. The presence of XFA forms and embedded script markers strongly indicates a malicious intent to compromise the user's system.

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
385a27118ca959009622b484f016f1395f65f08330781ba4d4e52d7a2dd43034		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101593 bytes

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