Malicious PDF — malware analysis report

Static analysis result for SHA-256 5426e53088bb701e…

MALICIOUS

PDF

99.7 KB
MD5: 2fbaf80a2a86703d2825aa19f35b2c27 SHA-1: f92ab41383c27b2628815e32ae07357529a17397 SHA-256: 5426e53088bb701eba0394653081e614c0f824fe3d5104cceda8e4a98bdae7e5
138 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. This exploit is designed to execute arbitrary code, likely leading to a second-stage payload download or execution. The presence of XFA forms and embedded script markers further supports the exploitation vector. No specific family could be identified, but the attack pattern is consistent with exploit-laden documents.

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
36c8b0cdd4fec60e0571ca3b67ac23d6df5fb76c051383d1763611a2f6f9b2c9		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101303 bytes

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