Malicious PDF — malware analysis report

Static analysis result for SHA-256 67fa40d7c03b7c25…

MALICIOUS

PDF

99.7 KB
MD5: 2ae64580182ffb95c6dd0b454a68e3d0 SHA-1: 3e57c262767480a3b8b9411888482dda922c2698 SHA-256: 67fa40d7c03b7c2511e413c715a2e60624d437548e8d9f0523ccdb5d3c6d9444
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an embedded script payload and exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. This indicates an attempt to execute arbitrary code upon opening the document, likely delivered via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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
cc6a881f83faa66a5e01ba04d912a46d789d030a528dc580015a357cc9ca1182
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101389 bytes