Malicious PDF — malware analysis report

Static analysis result for SHA-256 15431fce145ee8ea…

MALICIOUS

PDF

79.1 KB
MD5: 7a637a36b87ce810c326e3c0dcf986e1 SHA-1: 06551df8a0323dbe9f018ba15dccb2712a472635 SHA-256: 15431fce145ee8ea4becb68f3d4ac0e035097238d97e51a3726d77039c9003f9
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 triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code. The ML classifier strongly flags this PDF as malicious. The exploit targets Adobe Reader's handling of XFA forms and embedded files.

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
0931d87f7ebfa1fc48ca59dd308d100f646a4fb73dd76244ef8c3f5c90bfd5ac
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80214 bytes