Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e06f739377e13bc…

MALICIOUS

PDF

100.1 KB
MD5: cefc93873dd613dcdfe0e847deb3e1a1 SHA-1: 18ddc4f8adf9a0abb84e3935e94a0918879663de SHA-256: 2e06f739377e13bc1b0a18831439e320420ef6e3da6480e229262551ec5c86b5
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1566.001 Phishing: Spearphishing Attachment

This PDF file contains an embedded script payload and exploits the CVE-2010-0188 vulnerability in Adobe Reader. The XFA form structure suggests an attempt to leverage this known exploit for initial code execution. The embedded script is likely responsible for downloading and executing a second-stage payload.

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.
  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • 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_file_obj0008.bin
012baa309d4f48c4eaff6d9ba325469ffa4e80b592bce6328acf62d33b003f06		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101745 bytes

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