Malicious PDF — malware analysis report

Static analysis result for SHA-256 75ab0fe71dc143f0…

MALICIOUS

PDF

99.7 KB
MD5: 3be346f7ce6ab0883aaf34a6bf43866a SHA-1: b13664543596cb859ef6324db441346459cafd9a SHA-256: 75ab0fe71dc143f092a7f8efd77a17e18d4fe7d757f835bba2d55a2a463076eb
116 Risk Score

Malware Insights

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

The file is a PDF that leverages the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. This exploit is designed to execute arbitrary code, and the heuristic firings indicate an embedded script payload. The ML classifier strongly flags this PDF as malicious, suggesting it's intended to download and execute a secondary stage.

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
f05ba3e16016562bc75bdef4482a54ce9dae7422cc7f3209f1ce072eb9aaf7f2
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101380 bytes