Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc2391c9ef1c89b8…

MALICIOUS

PDF

99.6 KB
MD5: 90eb10bd1d0ef7c4d26a6ce9c17b92c7 SHA-1: ba8af3766b9e500e7d156f70fb347b7a5449f1e9 SHA-256: dc2391c9ef1c89b8e1fc7cff9f99468f2d77d15a6cbc560631d5963893a4a0f1
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF T1059.001 Command and Scripting Interpreter: PowerShell

This PDF document exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The exploit is embedded within the XFA form structure and is designed to execute arbitrary code. The presence of embedded scripts and an embedded file further supports the malicious nature of this document, likely serving as a dropper for further malicious activity.

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
6533884f589c5c4cf4f8e33b4839c9403af2d15df8046312299c78aaf204ad6a		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101210 bytes

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