Malicious PDF — malware analysis report

Static analysis result for SHA-256 548b051690d1e047…

MALICIOUS

PDF

14.1 KB
MD5: 2036b4958c4e045a68e4752f69e8648c SHA-1: ce6a3563b0be99f21fae891878dc9682e410764c SHA-256: 548b051690d1e0472c8dd9f0b677408bd5d1482186dfde05eb6035879666b5f9
130 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Clickjacking T1059 Command and Scripting Interpreter

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability, which is known to affect Adobe Reader and is often used to deliver malicious payloads. The presence of XFA form elements and the ClamAV detection of 'Js.Exploit.HTML-30' further indicate an exploit attempt. The embedded URL, while seemingly benign, is part of the exploit structure. The script logic within the PDF appears to be obfuscated, but the overall intent is to exploit a known vulnerability to execute code.

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: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/