Malicious PDF — malware analysis report

Static analysis result for SHA-256 00f27d2a5a7d46a7…

MALICIOUS

PDF

136.8 KB Created: 2011-09-08 05:03:17 Authoring application: FPDF 1.6
MD5: 26c88bf1b66efc9332dbb253d4132e82 SHA-1: 41d555c802ef5580ca4fcbd8faeea0f0e9b13c8a SHA-256: 00f27d2a5a7d46a784a404acc70447bcace4b66d06186281c28992ae93df50cf
110 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1204.002 Malicious File: User Execution

The file was identified as malicious by ML classifiers and ClamAV, specifically as 'Pdf.Exploit.Agent-36874'. It contains XFA form elements and AcroForm buttons, which are often used in PDFs to trigger exploits or malicious actions. The presence of a suspicious extracted artifact, 'stream_001_off000008ed.bin', further supports its malicious nature.

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
a951b0ab0e8a78b21398aab405862c2edc79deea9f1d9883ba65b5b7c4998bdf		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8ED 1443 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.