Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5758249f067af96…

MALICIOUS

PDF

79.2 KB
MD5: 3fad2ee8357972ffff706548a2698f9a SHA-1: 97ef0414e33dc6ae18863f2450bd79d238e566b2 SHA-256: f5758249f067af9630d45e1c9659025d1673a51564c3a9e31292d83885f19ab1
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Exploitation for Public-Facing Application T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF and XFA forms. The critical heuristic indicates that the decoded XFA payload was matched, suggesting the exploit aims to execute arbitrary code. The PDF also contains embedded script payloads within XFA forms, further supporting the exploit execution. No specific family was identified, but the attack pattern is consistent with a document-based exploit delivery.

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
405bd634931dc8de008323af4df242dda1924aee843ebc5247dee90b62fdaac9		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80330 bytes

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