Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5ee266d7df52117…

MALICIOUS

PDF

99.6 KB
MD5: d62b5b38a4886630a2d7bce522f01c5e SHA-1: 094f54f7be0f863c54f4671d8ee132ba402abf90 SHA-256: d5ee266d7df52117927ab6666fbee96931084c4429c6afde9bf654e254da4eae
136 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

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. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured.

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
44c8c693a67903fffc357e34fc56629510905270bfd00c030e17da426fddd3a4		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101255 bytes

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