Malicious PDF — malware analysis report

Static analysis result for SHA-256 01107cd23f7d9d13…

MALICIOUS

PDF

90.2 KB
MD5: bef181f742709b2ad8c2e59c7b47f6a1 SHA-1: b5e03604d6b9c650e55d480c49bba25efb9d573f SHA-256: 01107cd23f7d9d1340c11868ac482e0db45dc41a5e319ef3e7d2b0f01c26fe5c
180 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, as indicated by the 'CVE_2010_0188' heuristic firing and the presence of an XFA form. The embedded script, though heavily obfuscated, likely serves to download and execute a second-stage payload. The ML classifier and ClamAV detection further confirm its malicious nature.

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.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • Embedded script payload in PDF stream medium 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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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_pdf_script_0000023e.bin
bab453350293b6c37057a689d35b60dec522b558037c50c4129d103192e6584c		 pdf-embedded-script PDF raw stream script payload at offset 0x23E 91687 bytes

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