Malicious PDF — malware analysis report

Static analysis result for SHA-256 53bbea4989ca6ad5…

MALICIOUS

PDF

12.8 KB
MD5: b544193802838e2aabd91faa9ca7c9f2 SHA-1: 07f49b1fc89cd0687c27238fd1515d43816caf68 SHA-256: 53bbea4989ca6ad5563854fbd42c28388e4cfe308523143151c849a2cb666e5e
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The file is a PDF document that leverages an XFA form to exploit CVE-2010-0188 in Adobe Reader. The embedded script payload, detected by multiple heuristics, is likely responsible for executing the malicious action. The presence of an embedded script and the specific exploit indicate a downloader or dropper functionality.

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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000384.bin
4d0324ab45ca20c4b8b19464e96cb1467ac9c4d7517d01caab9f3c6c18374ca9		 pdf-embedded-script PDF raw stream script payload at offset 0x384 12312 bytes

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