Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1eb7aed30bd15d2…

MALICIOUS

PDF

23.9 KB
MD5: 1836c61378cf31bb167cd81c974109da SHA-1: 8f271ca9739be62a60d66bd8861d4e1a54e8eb9b SHA-256: f1eb7aed30bd15d2296550550f0237bf3c87c17e67b9c3044307dd9d06452833
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that triggers the CVE-2010-0188 exploit, targeting Adobe Reader's XFA form processing. This exploit is known to facilitate the execution of arbitrary code. The embedded URL, while seemingly benign, is often used in conjunction with such exploits to download additional malicious content. The ClamAV detection 'Pdf.Exploit.Dropped-78' further confirms its malicious nature. The script content is too obfuscated to determine its exact function, but the exploit and associated URL strongly suggest a downloader pattern.

Heuristics 4

  • 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
  • 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://www.xfa.org/schema/xfa-template/2.5/