Malicious PDF — malware analysis report

Static analysis result for SHA-256 9958c40198cb81e1…

MALICIOUS

PDF

79.8 KB
MD5: 73c1fa6760affe1547ff859fdb6889e8 SHA-1: 08f8198d5caa680f2b2b230049e7c8ae0bde2e9f SHA-256: 9958c40198cb81e16351e0216c769d03f4473398ebc715188faadf0f41ba2b50
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains XFA form elements and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader's LibTIFF handling. An embedded script payload was also detected, indicating the file is designed to execute malicious code. The primary attack vector is likely a user opening a malicious PDF, leading to exploit execution.

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_00000288.bin
68d53ffcd8351a85cbc6f4283ef9363438433ab0e1b43764c0dd531a06397716		 pdf-embedded-script PDF raw stream script payload at offset 0x288 81005 bytes

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