Malicious PDF — malware analysis report

Static analysis result for SHA-256 28eca2897c642161…

MALICIOUS

PDF

99.8 KB
MD5: 2375f06db1d4cc3ea1c98445b8af97cb SHA-1: 225a39c4f3b60cc4b5ed9180e19215621fb148ed SHA-256: 28eca2897c642161238ea3d82f914148bcbacf9ad17254456c3234e15249d3e9
138 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. The presence of XFA forms and embedded script payloads indicates an attempt to execute malicious code. The script likely downloads and executes a secondary payload, though its exact functionality is obscured by obfuscation. The embedded URLs, while mostly benign or unknown, are part of the XFA structure.

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
d0aa4400d9fb7dd2f0bfb5bf6b5a25c98dff4ccce6e8d64022d6ab2a9e25d25c		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101464 bytes

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