Malicious PDF — malware analysis report

Static analysis result for SHA-256 0070a607eec66240…

MALICIOUS

PDF

99.9 KB
MD5: bd28f0eeb02141d09561ea320efd9c4d SHA-1: 43f145c9e224f76c3d328a81180178f87cea24b9 SHA-256: 0070a607eec662405bbdb5f813de6d3ebe08f754d042b739920b8b21cdf95b02
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Exploitation for Public-Facing Application T1566.002 Phishing: Spearphishing Attachment

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms, to execute arbitrary code. The ML classifier strongly indicates maliciousness, and an embedded file suggests a dropper or exploit delivery mechanism. The lack of readable document body text or scripts prevents a more specific determination of the payload's intent.

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
ec61b857a9a16bae3c1247fc597d7d239bf8c680804726d0b5e6da9491eab512		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101515 bytes

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