Malicious PDF — malware analysis report

Static analysis result for SHA-256 01156ecc33c32c7b…

MALICIOUS

PDF

79.2 KB
MD5: 4a2c382a5057a4ae7c30ded71539547f SHA-1: 1a4821b00cbfb2e4562f2cb3108792c4ddd6d3c2 SHA-256: 01156ecc33c32c7b6aa00a41ec56472abdb5449b91a8b8949b0eb1ec03337eb7
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Clickjacking T1059 Command and Scripting Interpreter T1059.007 Command and Scripting Interpreter: JavaScript

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. This exploit likely allows for the execution of arbitrary code, potentially downloading and running a second-stage payload. The presence of embedded scripts and the ML classifier's high confidence further support the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
  • Embedded script payload in PDF stream medium 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 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 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
f97b610458f11899f830bdf252ba4e09d705f7f9e5a3b9373f0298ef1018224f		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80358 bytes

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