Malicious PDF — malware analysis report

Static analysis result for SHA-256 984c2ad0a39f82de…

MALICIOUS

PDF

82.6 KB
MD5: ab9ce9ae01de0783c1373c7deec43855 SHA-1: 7071d58adf63aef7ddeaa9f356e5a108ebbd5db9 SHA-256: 984c2ad0a39f82de7d84dc306e58e1fb13b21ea57f7697f90cc4d482c9980d67
178 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by multiple high-confidence indicators, including ClamAV detections and an ML classifier. The presence of an XFA form and an embedded script payload suggests an exploit is being leveraged. The embedded script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured by the PDF structure. The benign Adobe and unknown XFA-related URLs do not contribute to the maliciousness assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • 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.
  • 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_pdf_script_00000246.bin
4121862391160b7265bffc1351b28893f9732fabc657ca65bf7bd3f032066d18		 pdf-embedded-script PDF raw stream script payload at offset 0x246 83833 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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