Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3cb2eb07f65ccef…

MALICIOUS

PDF

89.9 KB
MD5: ff4bb60466122b232d520f22817cdbcb SHA-1: ee7c8301982ff6a6b86c84edbe59b5eb5f20d7d4 SHA-256: f3cb2eb07f65ccef576b3ebcd83d0a1859ca25e800fff919f4578c7dd109cfbd
248 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file utilizes XFA (XML Forms Architecture) which contains a heap spray exploit targeting CVE-2010-0188 in Adobe Reader. This exploit is designed to execute arbitrary code. The embedded script within the XFA form is the mechanism for this execution, likely leading to the download and execution of a secondary payload. The presence of XFA and the specific CVE strongly indicate an exploit delivery mechanism.

Heuristics 7

  • 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 risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • XFA JavaScript heap-spray exploit code critical PDF_XFA_HEAP_SPRAY
    PDF contains XFA script content with heap-spray or shellcode-like JavaScript markers such as large encoded word sequences, util.pack, large arrays, or spray variable names. This is a weaponised Adobe Reader exploit pattern, not a normal interactive form.
  • 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://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000023c.bin
95f6f71d6a86df47300f9ab794787c0739445637ae8d469dc19f1e1d1b0818a5		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 91392 bytes

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