Malicious PDF — malware analysis report

Static analysis result for SHA-256 019a311dfb59c5d3…

MALICIOUS

PDF

89.6 KB
MD5: 47c3587ab95acf0c14e72d6dce113ce8 SHA-1: b563a1227920d0e3507e75d4bd41b53e380f554b SHA-256: 019a311dfb59c5d38ce3d575ee2eceff10e95e565810549152f301c987d733b9
188 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell T1190 Exploit Public-Facing Application T1071 Application Layer Protocol

The PDF file contains an embedded exploit targeting CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. This exploit is designed to download and execute a malicious payload. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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
ba84cac92a8c7a39ecfc7770eb53efc07926d6fe02a719cb9f97dcd16b686fe8		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC8 91019 bytes

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