Malicious PDF — malware analysis report

Static analysis result for SHA-256 e738cfad0957e8d4…

MALICIOUS

PDF

75.8 KB
MD5: dad567eaeb28fd99cce093ad7173342c SHA-1: 2ec459f02b61a1bba36194a75b16c93ecd700864 SHA-256: e738cfad0957e8d4002eb6c1dc1ce9982cdb85224aec12bfcfe75f25a36bbfcd
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The PDF file contains an XFA form that exploits CVE-2010-0188, a vulnerability in Adobe Reader's LibTIFF component. This exploit is designed to execute arbitrary code. The embedded script, while not fully detailed, is indicative of malicious intent to leverage the exploit. The presence of multiple embedded URLs, though some are confirmed benign, suggests a potential delivery or command-and-control vector.

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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000286.bin
aabcdd04d3d0dcbe88fe290de94ff58f711e9a58c4744f112222ab17fc3eb740		 pdf-embedded-script PDF raw stream script payload at offset 0x286 76866 bytes

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