Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d54e3beeae87cad…

MALICIOUS

PDF

99.5 KB
MD5: 8721fbbd33bc3764eeace1b64c0563f4 SHA-1: 6852ae2fa8e73288948155b30c7e94d72569da68 SHA-256: 7d54e3beeae87cad5bd9c6b068db8689622ec26a680c9082207830feff731411
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by an ML classifier and exhibiting characteristics of an exploit. Specifically, it triggers the CVE-2010-0188 vulnerability related to Adobe Reader's XFA forms, indicating an attempt to execute arbitrary code. While no specific script content is visible, the presence of an embedded script payload and the nature of the exploit suggest it is designed to download and execute a secondary malicious payload.

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
cf10f3e651832f98b58aa7a0e903fd754bce0c0d367ad535588a1c5c74097277		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101165 bytes

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