Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f81df34ada88f7a…

MALICIOUS

PDF

102.1 KB
MD5: 86915b58dc2b2d9f8a3aad8988199003 SHA-1: e648cf3b862308fdf7754fc225e7dfdbe420b6b9 SHA-256: 6f81df34ada88f7a50d1c2362b182b8fcc26e0cb475f3a9c17431290063171a6
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF containing an XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component. The embedded script, although truncated, appears to be JavaScript and is likely responsible for executing the exploit payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000346.bin
0d2f9860058eeb3f215374d7388e59c73209ecd0663edc857be9531d10327f29
pdf-embedded-script PDF raw stream script payload at offset 0x346 103839 bytes