Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b343fe676f4c1f…

MALICIOUS

PDF

136.8 KB Created: 2011-09-08 05:03:17 Authoring application: FPDF 1.6
MD5: 34f35f39f07b3bd4503a6c256d8468e8 SHA-1: b85cb643ccad8261a9f347050a271d11a6ce2201 SHA-256: 06b343fe676f4c1fc44fc501ac5c92380e29adfc307695e3f984b33c781ebe49
110 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is identified as malicious by ML classifiers and ClamAV with the signature Pdf.Exploit.Agent-36874. It contains XFA form elements and an AcroForm button with an action trigger, indicating it is designed to exploit PDF vulnerabilities for client execution. No specific document body text or scripts were extracted for further analysis.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-36874 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36874
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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-data/1.0/
    • http://ns.adobe.com/xfdf/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off000008ed.bin
c9ec1ef291979d64eb1d2bcdf5a75820effa2ee45ef8263c4984ebc6c1575ed4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8ED 1404 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.