Malicious PDF — malware analysis report

Static analysis result for SHA-256 d20f3ab0f1e730b6…

MALICIOUS

PDF

99.8 KB
MD5: 946bd21d3596a4fac11de6294b184379 SHA-1: 46a281f4c3e966b7d642280274a110b01163c549 SHA-256: d20f3ab0f1e730b62fb04b9d589469674cb2b8d8c78302aed2b6481ddf01df34
136 Risk Score

Malware Insights

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

This PDF document exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF XFA images. The heuristic firings indicate an embedded script payload within an XFA form, which is characteristic of exploit delivery. The embedded file suggests a secondary stage, though its content is not detailed here. The primary attack vector is the exploitation of the Adobe Reader vulnerability to achieve arbitrary code execution.

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
fa9cdf2d6d80cf4f68fa947455065dc1121f8e98cb892b6088a795a99df019b1		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101453 bytes

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