Malicious PDF — malware analysis report

Static analysis result for SHA-256 56093e2c4bdf4ce0…

MALICIOUS

PDF

112.0 KB
MD5: 64f58baf6f6f8bd10ebae6a9ca87d806 SHA-1: 740badfae0a8fbdf8dcd3d8cca018b8f993bde3a SHA-256: 56093e2c4bdf4ce01926eab85b50747880d140fe0a039f58d14546de58d442a0
248 Risk Score

Malware Insights

The PDF file contains an XFA form with an embedded script, which is a known vector for exploiting vulnerabilities like CVE-2010-0188 in Adobe Reader. The embedded script payload, detected by ClamAV as Pdf.Exploit.Agent-6136306-0 and its extracted artifact as Js.Exploit.HTML-27, is designed to download and execute a second-stage payload. The document body content is heavily obfuscated and does not provide clear user-facing text, but the presence of the exploit and script indicates a malicious intent to compromise the user's system.

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.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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_00000238.bin
7314a1f06a29b360c9a4a1dbc90bcad4baea07c3eb1073643fce2de92339f182		 pdf-embedded-script PDF raw stream script payload at offset 0x238 114007 bytes
Detection
ClamAV: Js.Exploit.HTML-27
Obfuscation or payload: unlikely

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