Malicious PDF — malware analysis report

Static analysis result for SHA-256 00eeab5e277a0f51…

MALICIOUS

PDF

79.4 KB
MD5: 77db8d460673e30e8a3cfa162a3aabc0 SHA-1: 43a3cddcec7797e6b1c6def813f5d82d1edd20f8 SHA-256: 00eeab5e277a0f5197e8d989b5244a47599e77a4856f1058f41d7684a643bb64
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1204 User Execution T1059.001 PowerShell T1059 Command and Scripting Interpreter

The critical heuristic firing for CVE-2010-0188 indicates that this PDF exploits a known vulnerability in Adobe Reader's LibTIFF component. The presence of an embedded script payload and the ML classifier's high confidence score further support a malicious classification. The embedded URLs, while not directly malicious, are part of the XFA structure that facilitates the exploit. The primary attack vector is likely the exploitation of this vulnerability to achieve code execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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
919cdc37510e4d76c0dc91fb1dd955089d12c1ef63ee0a4dfe9286914137877d		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 80568 bytes

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