Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bd73b0bdb566bc5…

MALICIOUS

PDF

99.7 KB
MD5: fab0ed75a7e1f83b8a3942bf29555cb3 SHA-1: a0afe7445172495f9074ad78ab1b8214b0c15900 SHA-256: 1bd73b0bdb566bc511e2082f5702c92acbe01230d49f55b839c985589c04cf8b
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF T1059.007 Command and Scripting Interpreter: JavaScript

This PDF document exploits the CVE-2010-0188 vulnerability in Adobe Reader, leveraging XFA forms and embedded scripts to achieve arbitrary code execution. The embedded script is highly obfuscated, making its precise actions difficult to determine, but the exploit itself is a clear indicator of malicious intent. The primary IOC is the CVE identifier for the exploited vulnerability.

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 executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • 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
3da07a951894b775ab90f13da8984dafde198c71e7cdd947f429755cbeeb3642		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101391 bytes

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