Malicious PDF — malware analysis report

Static analysis result for SHA-256 392d2b813eb35807…

MALICIOUS

PDF

12.7 KB
MD5: c3352b16be73d75f14356b51b858d8f0 SHA-1: 50af902da3c575ef8b16d5bafa8fba028bd44cdc SHA-256: 392d2b813eb358070faf753056ca3dde3a2d372c5465a5fa1e7eb3374edd614e
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form that is exploited by CVE-2010-0188, a known vulnerability in Adobe Reader. The embedded script payload, likely containing malicious code, is executed when the PDF is opened. The script is heavily obfuscated, but the presence of XFA and the specific CVE indicate a malicious intent to compromise the user's system.

Heuristics 6

  • 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.
  • XFA form contains executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • 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://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
9f73591a8e0993e662d98820d43328b97cb631c1858199a537a015c06bfb1662		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12295 bytes

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