Malicious PDF — malware analysis report

Static analysis result for SHA-256 20f931bb9b9c4ce3…

MALICIOUS

PDF

16.3 KB
MD5: 7dff0810b9eeb46e988aa4491360b73b SHA-1: 44d9d70bbb10bf969d32092cd1541231d9136e65 SHA-256: 20f931bb9b9c4ce3d12be92b407140fa0cd30375366cf4d443faf4eb4b23bd57
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form which is known to be vulnerable to exploits. Specifically, the CVE-2010-0188 heuristic indicates a LibTIFF XFA image exploit. An embedded script payload was also detected within the PDF stream, further supporting the malicious nature of the file. The embedded URL is likely part of the exploit chain or a lure.

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_00000359.bin
31430328d9184a7adcc3eab04d5d710587313cfeb6423293f2c89f3455a8a8f2		 pdf-embedded-script PDF raw stream script payload at offset 0x359 15926 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.