Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2baff13c1249ce7…

MALICIOUS

PDF

79.7 KB
MD5: 4dca90af8f67ca1a58e4ab599a7ff33b SHA-1: d205f037bbffe9e2707b518b5df13aef571982dd SHA-256: a2baff13c1249ce710ecd4119c5f00e41e48b9da949e95fae70b865bf098b01f
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1559.001 Component Object Model Hijacking: Component and Control Hijacking

The PDF file contains an XFA form that is exploited by CVE-2010-0188, a known vulnerability in Adobe Reader. The embedded script payload, approximately 80KB in size, is likely responsible for delivering the malicious content. The presence of XFA forms and the specific CVE indicate a targeted exploit delivery mechanism.

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.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • 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.
  • 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_pdf_script_00000288.bin
8c2a936d985ebea238092bc66b9493e44f93cd737753dceccaa2da8914928531		 pdf-embedded-script PDF raw stream script payload at offset 0x288 80911 bytes

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