Malicious PDF — malware analysis report

Static analysis result for SHA-256 d699ff1b9aff05fe…

MALICIOUS

PDF

12.8 KB
MD5: ee5a60c299a37e243f6796a7ae099f1c SHA-1: 32d51e2a5a1d3cfd72fcbe5ab7576260a218a791 SHA-256: d699ff1b9aff05feaffbbe6f08e6ecfcd5adb5202078794cc1f0f8ed3a9470a8
190 Risk Score

Malware Insights

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

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit, targeting Adobe Reader. This exploit is designed to download and execute a secondary payload. The embedded script, though not fully decipherable due to obfuscation, is indicative of malicious intent to compromise the user's system. The presence of an embedded URL further supports the payload delivery mechanism.

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
aa451a74c52f70f0ccb7a9f55f813fc2d3843d27578247b2b80b468b8350f80d		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12425 bytes

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