Malicious PDF — malware analysis report

Static analysis result for SHA-256 16c6783e0111b4b7…

MALICIOUS

PDF

99.7 KB
MD5: 51995542c078d94b88c912c6a5cb7705 SHA-1: 75eef9bd768c62f209ee596d15937266da58f35f SHA-256: 16c6783e0111b4b7c0a5e27525e3823196f867150030d273cbf4a7668e8535ef
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader, which is designed to execute arbitrary code. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script payload, though obfuscated, likely facilitates the execution of the exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Malware.Agent-9813700-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Malware.Agent-9813700-0
  • 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 script payload in PDF stream low 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 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
aba511c4f9ea2887b90fdb49cb66f84eb76485fee8f8b4f20b3d7abbba29ba55		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101343 bytes

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