Malicious PDF — malware analysis report

Static analysis result for SHA-256 8912adc829a48cc5…

MALICIOUS

PDF

78.9 KB
MD5: 4756808fa1520d0a461658e1c19e8869 SHA-1: 98b6d09212cf27cd8ac0d0ec04ca0661e9239c1a SHA-256: 8912adc829a48cc53d4423923ce14c4280a9a740090d3368a177a3a4c0acc80b
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by an ML classifier and heuristics. It contains an embedded script payload and exploits CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. This exploit is likely used to download and execute a secondary payload, although the specific payload and its origin are not detailed in the provided evidence. The benign URLs present are likely decoys or related to the XFA form structure.

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
e91472245695e8b1789d85d8e43e3ea816187fbd2007a841259e33f630b19c8a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80037 bytes

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