Malicious PDF — malware analysis report

Static analysis result for SHA-256 158a9e5f4ef1a8c8…

MALICIOUS

PDF

99.9 KB
MD5: ff2ddde3864725a1c2b61015d4b1db46 SHA-1: e0c66d1ca310a9229db161ab9320799a1c8a0419 SHA-256: 158a9e5f4ef1a8c8d7246c465263a4fc671024d340056076688ee43e6699179d
116 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms, to execute arbitrary code. The embedded script payload and XFA form structure indicate malicious intent. While the specific family is not identifiable, the exploit targets client execution via a known PDF vulnerability.

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
c99abdf12c1e52f5d841aa22c7d46ef50cd096cc820cab8fe387d61a7a1aea5a
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101502 bytes