Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fa0e95d179a447b…

MALICIOUS

PDF

102.1 KB
MD5: 9328414a75275b63995b044b31bf5d78 SHA-1: bca0cffb4f218555ab4e05ee9c25387b5249657e SHA-256: 1fa0e95d179a447ba1b68a177001ed197233da312dc01641c33742b3c5fe37f3
188 Risk Score

Malware Insights

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

The file is a PDF document that leverages an XFA form to deliver a payload. Heuristics indicate a critical vulnerability (CVE-2010-0188) related to LibTIFF and XFA image exploitation. An embedded script within the XFA form is also detected, suggesting it's responsible for executing the exploit. The embedded URL is likely related to the XFA template, but its reputation is unknown.

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_00000346.bin
531276ecad555ef3c1a3fd9de2181851cedc44c2b20f461795e65de0b5ab7d8d
pdf-embedded-script PDF raw stream script payload at offset 0x346 103790 bytes