Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a4a010eb0fc5a6…

MALICIOUS

PDF

86.8 KB
MD5: bd20a118846030d24ea3ddf6ef5974dd SHA-1: 3af9441e03a51a923e54adc505501b28d70730d6 SHA-256: 74a4a010eb0fc5a60f792e39ebe429597636afd3530fb1222751f4573c9fe29b
176 Risk Score

Malware Insights

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

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's handling of XFA forms. The exploit is designed to execute arbitrary code, which is a common method for delivering secondary payloads. The ML classifier and ClamAV detection strongly indicate malicious intent, and the embedded file suggests a dropper mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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
b9cf541d32d8c786af0612992fd1561a725316b1808ee660f0cc2e865b44877f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 88081 bytes

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