Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6058fe267c4f434…

MALICIOUS

PDF

111.0 KB
MD5: e01194abff33f9d1963911d99ef7baa8 SHA-1: 0fe84a989eae70a6b66a964a387d6b458a17fdd4 SHA-256: e6058fe267c4f4347bab5773bd6542e0aa3ccea3450a14f87e310b63120d8eb7
250 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

This PDF file contains XFA (XML Forms Architecture) content, which is known to be a vector for exploits. Heuristics indicate the presence of a heap spray and an exploit targeting CVE-2010-0188, a vulnerability in LibTIFF used by Adobe Reader. The embedded script payload, likely JavaScript within the XFA form, is designed to execute this exploit. The primary purpose appears to be the exploitation of Adobe Reader to achieve arbitrary code execution, likely for downloading and running a second-stage payload.

Heuristics 7

  • 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.
  • XFA JavaScript heap-spray exploit code critical PDF_XFA_HEAP_SPRAY
    PDF contains XFA script content with heap-spray or shellcode-like JavaScript markers such as large encoded word sequences, util.pack, large arrays, or spray variable names. This is a weaponised Adobe Reader exploit pattern, not a normal interactive form.
  • 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_0000023b.bin
b5bb0f9af0eb4aaa642862507d90623da0819d5af030decbcce510c98315a8a5		 pdf-embedded-script PDF raw stream script payload at offset 0x23B 112929 bytes

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