Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d444bc752f597b7…

MALICIOUS

PDF

90.0 KB
MD5: 208a73fb5d2b05ffbed99d2e1e9f690c SHA-1: f3f113fd4f2f7d53822ef1c06346dd47ea3d18bc SHA-256: 4d444bc752f597b7d653c0f23eab69f010f183ac979ae6b909fa6b28d86acf3b
250 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that utilizes XFA forms, a known vector for exploiting vulnerabilities. Specifically, the 'CVE_2010_0188' heuristic indicates the exploitation of a heap spray vulnerability in Adobe Reader related to LibTIFF processing within XFA forms. The embedded script, likely JavaScript within the XFA form, is responsible for executing the exploit payload. This payload is designed to download and execute a second-stage payload, though the exact download URL is not directly extractable from the provided evidence.

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 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.
  • 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
a1a79059d5dd47b411d2faa0e0f02b06481f0fe84ae5e77660211d26369e5573		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 91490 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.