Malicious PDF — malware analysis report

Static analysis result for SHA-256 cba07e1f57658573…

MALICIOUS

PDF

99.8 KB
MD5: 93fdb5b842cfb2ac2a3daef64c00757b SHA-1: b13dd3c706e7202a85c68666de8308c56af21f56 SHA-256: cba07e1f576585730b379a76017b7e2f710cc990247da80488adba3a068d07ee
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious PDF

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The critical heuristic indicates a direct exploit of this CVE, likely leading to the execution of an embedded script payload. The embedded script is designed to leverage the XFA form's capabilities, potentially for downloading and executing further malicious content. The presence of embedded URLs, though benign or unknown, suggests an attempt to interact with external resources.

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
2b4112aef7c38c38a29b3cf5d0c77597e8b7ef60cc7459ef4dc66764fa3914f6		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101474 bytes

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