Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe25ff6155ad798…

MALICIOUS

PDF

42.5 KB
MD5: 6c16c7e5855bcaa9c4fa151a40d229ba SHA-1: 72f520b1c3d9d903c6f77ac3077558e4a3eac4d7 SHA-256: bbe25ff6155ad798af4720f4e16b48269aac19e43d2001608c12ba82818627b2
156 Risk Score

Malware Insights

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

The PDF was detected by ClamAV as Pdf.Exploit.Agent-36830, indicating it contains a known exploit. Heuristics confirm the presence of an embedded script payload and an embedded file, both common delivery mechanisms for malicious content. The extracted document body contains obfuscated JavaScript-like code, suggesting an attempt to execute malicious actions upon opening.

Heuristics 6

  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • 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.
  • 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
f21cdd2c51c16c15f308d8bd4540f68bea0d38f16a74fa2bd9dc672b8a08b4fb
pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42741 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely