Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3e6b707c6d8cb53…

MALICIOUS

PDF

79.3 KB
MD5: baba07dade56cfc78fbf3b9b95d16602 SHA-1: 0f66d80784bb6fb5865e862a1dd3f4b4e0031f06 SHA-256: e3e6b707c6d8cb53d614873d9b0ad0871432acd10c25d944895fd702754c0f30
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

This PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. The embedded XFA form contains executable script which is likely responsible for triggering the exploit. The script's purpose is to download and execute a second-stage payload, though the exact URL is not directly extractable from the provided evidence. The presence of an embedded file further supports the malicious nature of this document.

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
a0ca1ef6a9293a89b73fc417ef05f21c2fe0c7dbb826dc4025119b44eccaa696		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80420 bytes

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