Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b5c4d36e995fdb1…

MALICIOUS

PDF

16.0 KB
MD5: 2c6f95d52561a18db9e15a40295167df SHA-1: 8e87eb8e54bb188113a00d300e73357bf089f59e SHA-256: 1b5c4d36e995fdb10c09aea6630cf41d062682aa115dc61acf8cc3e6a9167a15
190 Risk Score

Malware Insights

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

The PDF file contains an XFA form that leverages the CVE-2010-0188 exploit targeting Adobe Reader. An embedded script payload was detected within the XFA form, indicating the potential for arbitrary code execution. This script is likely responsible for downloading and executing a secondary payload, as suggested by the ClamAV detection signature 'Pdf.Exploit.Agent-6136306-0'.

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_0000034e.bin
0e5780f459ec39560da39b5c6a8721cfecdd07e87e770d5f3e2da02da1f82eca		 pdf-embedded-script PDF raw stream script payload at offset 0x34E 15669 bytes

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