Malicious PDF — malware analysis report

Static analysis result for SHA-256 62ff494f96369e4e…

MALICIOUS

PDF

78.7 KB
MD5: b79636f15b8ea97ba1e08a85386e3acd SHA-1: 7d996917401b2ebd87e123839bb58f1a9ab0cc73 SHA-256: 62ff494f96369e4e9f0547edc00c451b75fd32029e080c4ef669976e60b447bd
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 CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component. This indicates the file is designed to execute arbitrary code upon opening. The ML classifier strongly flags this PDF as malicious, supporting the exploitation attempt.

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
8deb441b683cb377d721928c13fe2715ed7d3e5a58034ec0d09b11651b02ea23
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 79861 bytes