Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1805d7f11384af3…

MALICIOUS

PDF

50.7 KB
MD5: 941152a9c29e06011c44bc89b1af96a1 SHA-1: 747a86865ead45e01f36cb5c9c017a5f4a944cdf SHA-256: f1805d7f11384af3a47b50b664340903ef4e7417a5e3e97a9baa77d71793298a
196 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains embedded XFA form data which is exploited by CVE-2010-0188, a known vulnerability in Adobe Reader. This exploit likely leads to the execution of a malicious payload, as indicated by the 'Pdf.Exploit.Agent-6136306-0' ClamAV detection. No specific script content was available for detailed analysis, but the exploit itself is the primary indicator of malicious intent.

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.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.
  • 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
6fed2b9646b64be6b49011a65c7b3c5d51aa7bcd5d7ded8dc97940240f2f7092		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 51197 bytes

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