Malicious PDF — malware analysis report

Static analysis result for SHA-256 293ea2c11aee88a7…

MALICIOUS

PDF

99.6 KB
MD5: 7f7b8de025c318b45ec0154600bd554e SHA-1: 9598b8a6e029db2028dd80139eaee503216f9730 SHA-256: 293ea2c11aee88a741032f5f8b1625c5baab0d873982c0c6ec2ba8717e2def97
196 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The PDF contains an embedded script payload, indicating it's designed to execute malicious code upon opening. The embedded script likely downloads and executes a second-stage payload, though the exact nature of the payload is not fully discernible from the provided data. The ClamAV detection further confirms its malicious nature.

Heuristics 7

  • 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.Malware.Agent-9813687-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Malware.Agent-9813687-0
  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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_file_obj0008.bin
2498999a93e20f8caf0ccd016e8d6ffbbbad686a4998f1cc3fac71bb2eafebd0		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101246 bytes

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