Malicious PDF — malware analysis report

Static analysis result for SHA-256 95349ce6b03c3b3b…

MALICIOUS

PDF

100.0 KB
MD5: 8d2350dd9e05bbe2fe1e30f59de55094 SHA-1: 3b4749efbe37cfcff72e645bd3c1d6675e194d78 SHA-256: 95349ce6b03c3b3b419299bc8afbe9fb59356f1b0bf1576a3a8b715dae9e8e08
136 Risk Score

Malware Insights

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

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms. The embedded script payload within the XFA form is likely responsible for executing arbitrary code. The embedded URLs are related to XFA schemas and Adobe, but their reputation is unknown or benign.

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
7c7b4680bff82b2cf5a278d7720f1288b47771f7de2aa37fa7b9d5309047be7c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101610 bytes

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