Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c269370ee33af75…

MALICIOUS

PDF

42.4 KB
MD5: 3ed1ae3f8cd1a8dfc61b8b935b9560d7 SHA-1: c6058c3483429a1e904f537858e5fe4764fbb991 SHA-256: 8c269370ee33af754028b54ea82974cfeeb4ab6a4ce2238043adccde0a9d338a
156 Risk Score

Malware Insights

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

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36830. It contains an embedded script payload and an embedded file, indicating it is designed to exploit vulnerabilities within the PDF reader. The embedded script is heavily obfuscated, making its exact function difficult to determine, but the presence of an embedded payload strongly suggests it is used to download and execute a second-stage malicious artifact. The document body contains JavaScript-like syntax, further supporting the exploit delivery.

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
148407d2271e025b328b1aeb5877a6c58fe14132dafbf0320a7e6b2121be4430		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 42663 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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