Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d7eb9ea71b116bc…

MALICIOUS

PDF

12.7 KB
MD5: b80aa6c0ac70dfeb0063be4850feae47 SHA-1: 23cc46350fed9e1b6c52683a69f127612a7e9f3f SHA-256: 5d7eb9ea71b116bc98d4b526dc0909a5b7bf6a780e3c097c853f4b7f15d28fe1
168 Risk Score

Malware Insights

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

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability in Adobe Reader, as indicated by multiple critical heuristic firings. The embedded script, which appears to be JavaScript, is likely responsible for executing the exploit payload. While the script is heavily obfuscated and truncated, its presence and the exploit firing strongly suggest a malicious intent to compromise the user's system.

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_00000359.bin
3c816c9899a1145658d6613475638bb7414d445e6d69390c7902b241a27683cd
pdf-embedded-script PDF raw stream script payload at offset 0x359 12293 bytes