Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f04726c6cca76a1…

MALICIOUS

PDF

42.7 KB
MD5: d24579ebd0af8bb97cc4687990969d2c SHA-1: 3175fff5a1e1f1e0f29f3eb3788d9e8abd67fcd3 SHA-256: 0f04726c6cca76a1c985903baba9581eb161557a685353b1b9a91d4717702b87
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded script content and is flagged by multiple heuristics and ClamAV as a malicious exploit. The ML classifier also strongly indicates maliciousness. The embedded script is likely responsible for executing the exploit, leading to arbitrary code execution.

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 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 script payload in PDF stream low 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 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 0xC6 46 bytes
embedded_file_obj0009.bin
050023e11059eaf1f45454cdb42ca53ca837ca50f055cf684153677da883b2c8		 pdf-embedded-file PDF EmbeddedFile object 9 at offset 0x13C 687 bytes
embedded_file_obj0010.bin
69650a61091a018036679a3439cc6a018b6a91ebe9e0e3a6b36ceb04d6491a4f		 pdf-embedded-file PDF EmbeddedFile object 10 at offset 0x436 160 bytes
embedded_file_obj0011.bin
25004e766371c7846c9c1f5b4aa7502c1d85e076befa61fdea7e8ebad1cd91a9		 pdf-embedded-file PDF EmbeddedFile object 11 at offset 0x521 459 bytes
embedded_file_obj0012.bin
d2f06f3fc6900856fe613a64a561919c8454dcbe0fdf238fb8b43e07016955ea		 pdf-embedded-file PDF EmbeddedFile object 12 at offset 0x737 190 bytes
embedded_file_obj0014.bin
eba5fcceeb637f5a1f6b073aa40840a35e8ffe2fb500f967405d6176a8b4dd9b		 pdf-embedded-file PDF EmbeddedFile object 14 at offset 0x842 40912 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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