Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba0fe84a13fb14d3…

MALICIOUS

PDF

94.1 KB
MD5: d402bcc1615493231fa6c1dcc8f964b7 SHA-1: 97807ab41bf0b96696545579480e946e79b5e18d SHA-256: ba0fe84a13fb14d374b817171c378237b64aa1a24525985c57179ebc030df50a
178 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF utilizes XFA forms and contains an embedded script payload, strongly indicating malicious intent. ClamAV detections further confirm this, identifying it as Pdf.Exploit.Agent. The embedded script is likely responsible for delivering the malicious payload, though its exact function cannot be determined due to obfuscation.

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
4a3c973c7f43ecc8abf5e8625bac2a556f0dec114266d2bdb59b18de047c1bf8		 pdf-embedded-script PDF raw stream script payload at offset 0x246 95638 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36769
Obfuscation or payload: unlikely

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