Malicious PDF — malware analysis report

Static analysis result for SHA-256 49b3fcd3a922fdfc…

MALICIOUS

PDF

99.7 KB
MD5: f83995db2e1ea30eecb9fdb563b1dbf6 SHA-1: 0f9760d93d526f3f3210305afadd9a69ca53dbc3 SHA-256: 49b3fcd3a922fdfc79b1a51fa359dd59feb6366ed5f5491b9c37eed8ffbea873
136 Risk Score

Malware Insights

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

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component via an XFA form. This exploit is designed to execute arbitrary code, likely leading to further compromise. The embedded script payload and XFA form heuristics confirm the malicious intent.

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
c75e4bbf432f8e99896f35f4e094fed5bafc7a9ca361bf6aae554f5d091f90c2		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101349 bytes

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