Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea04d6f9721a3a4a…

MALICIOUS

PDF

99.7 KB
MD5: 7bf00073c0ec3e16328aeb0b622c61ec SHA-1: 722f3f02ca54028757fd544daef9d1b68ff070ef SHA-256: ea04d6f9721a3a4a3d16c0002b79cd5acd4f2a93cfcd7d80c22ab94baea8c43a
136 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader's LibTIFF component, to achieve arbitrary code execution. The presence of XFA forms and embedded scripts further indicates malicious intent. The embedded script, though obfuscated, likely facilitates the exploitation process by interacting with the XFA form to trigger the 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
a8795f77b39d2dfd3062f48b4d90f2daa2f2f1d4971192e8e1c32ffb13fe8a38		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101333 bytes

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