Malicious PDF — malware analysis report

Static analysis result for SHA-256 a03b5d441ec9567e…

MALICIOUS

PDF

42.3 KB
MD5: 028bbe79361a2d004de6cd4b3d2a97a3 SHA-1: 080f5266c279567de10d3b399555a1377ae3d5da SHA-256: a03b5d441ec9567e22d0e9dbd19cb92dda142a66ee12cb1540cc43570074ef03
186 Risk Score

Malware Insights

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

The file is a PDF document flagged by multiple heuristics as malicious, including ML classification and ClamAV detection (Pdf.Exploit.Agent-36830). It contains embedded files and scripts, indicating it is designed to deliver a secondary payload. The embedded artifact detection and the ClamAV signature strongly suggest an exploit targeting PDF viewers.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
0a2224c4023b216235b61c3fc4dd17bbfac1ab23a545687f51b97604cf654712		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD7 46 bytes
embedded_file_obj0009.bin
31312485d4ad16a4c9a7db8f9755258aa868095c8e965561e5d16ad00ab60bb5		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x14D 689 bytes
embedded_file_obj0010.bin
de913a067c1e5a47831f1eba0ee72b663ccd0a38727b4b1cba1f8d6e7ca84cda		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x449 165 bytes
embedded_file_obj0011.bin
ecfd13fc0cbefaa20099622c8b13fde232499e3ea3ac6a0eb6ef8784559a4309		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x539 423 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x72B 190 bytes
embedded_file_obj0014.bin
187bdda91defa032b6333e3ea2d9f35f9302765b45281dcaed5a0a70fb924a87		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x836 40536 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.