Malicious PDF — malware analysis report

Static analysis result for SHA-256 09f34b507442bdca…

MALICIOUS

PDF

99.8 KB
MD5: eb8167bdc96dcb5c9f43df632ad943d1 SHA-1: 6ba0bc700260c4833b69c36694639512e489ff7e SHA-256: 09f34b507442bdcaa7044dc0db4045d103e632471ca8343a4a9ec2fceabf13ba
116 Risk Score

Malware Insights

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

The sample is a PDF file identified as malicious by an ML classifier and heuristics indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader's LibTIFF component. The PDF contains embedded XFA forms and an embedded script payload, which are commonly used to deliver exploits. The exploit likely facilitates the execution of arbitrary code, potentially downloading and running a secondary payload. No specific malware family could be identified.

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
9af114b2a54a9223fcbaa448d7bc700d5f86a28a4c3099d4f50361a6cb16a8d1
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101411 bytes