Malicious PDF — malware analysis report

Static analysis result for SHA-256 da7d858b839d2a9e…

MALICIOUS

PDF

99.6 KB
MD5: e8dfc96b3d5f9ebe19cbdde4bd80f485 SHA-1: 70f980c21720a0c067a3a2d29885cec33a125f9e SHA-256: da7d858b839d2a9e3c2126fe0709b4f6c232a0e9c35fd6495347f2b57dfdd5a6
138 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. This exploit allows for the execution of arbitrary code. The PDF contains embedded scripts and an embedded file, suggesting it's designed to deliver a secondary payload. The presence of XFA form elements and embedded scripts points towards a client-side exploit targeting PDF viewers.

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
d756f11e48709ae5692337921ce5eb63dd478070fdc7a6bd89c6844150c3df55		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101214 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.