Malicious PDF — malware analysis report

Static analysis result for SHA-256 c61c3a1ff0c520ec…

MALICIOUS

PDF

16.3 KB
MD5: b408d6135ea98b7c8205e917efc9d053 SHA-1: a66491a120e2a7509c40ea14cd29d5ea2b366a92 SHA-256: c61c3a1ff0c520ec6575b2ebc72c1b5e39fe280e52d386d2fe2f7e70c9def581
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell T1566.001 Spearphishing Attachment

The PDF file contains an XFA form with an embedded script, which is a known vector for exploiting Adobe Reader vulnerabilities. Specifically, the CVE-2010-0188 heuristic indicates a LibTIFF exploit targeting Adobe Reader. The embedded script likely downloads and executes a second-stage payload. The ClamAV detection further confirms its malicious nature.

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
f9df57622dbad0fc490084b75c2b88a79557c76f6aaf7c7f68763f33c01cae1e		 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.