Malicious PDF — malware analysis report

Static analysis result for SHA-256 87f5ec41d5e133ee…

MALICIOUS

PDF

14.1 KB
MD5: 4b7506fa453800247b66845b32653cc7 SHA-1: 2439c07f1af62eb60b877a9ca10c822c07c3d473 SHA-256: 87f5ec41d5e133ee8128a6f68a8f48877ef4e0a641c75172efbbd257f1f2e109
84 Risk Score

Malware Insights

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

The critical ClamAV detection 'Pdf.Exploit.Agent-36962' strongly indicates a PDF exploit. The presence of embedded files and an embedded URL further supports this, suggesting the document is designed to lure the user into triggering an exploit that downloads a secondary payload. The specific exploit mechanism is not detailed in the provided heuristics.

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-36962 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36962
  • 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
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
  • 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://www.xfa.org/schema/xfa-locale-set/2.1/

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0041.bin
c06dcd026a7ea0536b63e07ce688691b585339a3ab7ff59065e546b56308c7bb		 pdf-embedded-file PDF EmbeddedFile object 41 at offset 0x2ACA 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2B7C 1029 bytes
embedded_file_obj0043.bin
f44bf07a5e766e1ab751c881e0c803396c26566487c8d16ae18e3f70aa11a14f		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2D95 1931 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x320F 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x32BB 77 bytes

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