Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d99bfc822097893…

MALICIOUS

PDF

99.7 KB
MD5: 3add9bc39f7af0dc07e6685df1ac40c2 SHA-1: 419cbe9b911930d894aa1cabcb02daf26e8bd173 SHA-256: 0d99bfc82209789384ad62b0c697f579deafbcdb6be8880ef0d5c75cbb417e7c
116 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component, allowing for arbitrary code execution. The presence of XFA forms and embedded script payloads further indicates malicious intent. While no specific family is identified, the exploit mechanism points to a targeted attack, likely delivered via spearphishing.

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
7b4441734bce44ca81cb1e3843b0318b9b36ac35f5e23b837e7c0e6d0df9fd83		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101368 bytes

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