Malicious PDF — malware analysis report

Static analysis result for SHA-256 099e90a53686eae4…

MALICIOUS

PDF

99.6 KB
MD5: a11caf6e9dc5656025a8ea5a0611123f SHA-1: eb45af5788efeb28abd5893ba50280261f5cc2eb SHA-256: 099e90a53686eae415ef81e33840e217133120bd95a4f603b141d8cffbbb368c
116 Risk Score

Malware Insights

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

This PDF file is identified as malicious due to the exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The heuristic firings indicate an embedded script payload within a PDF stream, which is characteristic of exploit documents designed to deliver a secondary payload. The benign URLs present do not detract from the malicious nature indicated by the exploit and ML classifier.

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
7e4cea210574d2a0e771068d42f62fc8ccc5a89ffd27ca5d3b0954c8cafd2cdb		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101242 bytes

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