Malicious PDF — malware analysis report

Static analysis result for SHA-256 59f959ea7bdd6b4b…

MALICIOUS

PDF

12.8 KB
MD5: 03517a14b03a10f396e571f043259dcb SHA-1: 0641034e5d76edb92a22b0a17129a17a85ef4b81 SHA-256: 59f959ea7bdd6b4b3fdce03158e910b454f199ffd02d2c21f6a64a14ac43d7c6
188 Risk Score

Malware Insights

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

The PDF file contains an XFA form with an embedded script, which is exploited by CVE-2010-0188 in Adobe Reader. This exploit is designed to download and execute a secondary payload. The embedded script is the primary mechanism for this malicious action. 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_0000034c.bin
bb6d7787e46bbfec0acb3bf0d2ac614d1640444327dd2dec9182db025f9b2500		 pdf-embedded-script PDF raw stream script payload at offset 0x34C 12351 bytes

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