Malicious PDF — malware analysis report

Static analysis result for SHA-256 8683e7cd70ef85a7…

MALICIOUS

PDF

14.3 KB
MD5: 5ed9e9595104c1e473fe7449b142fb42 SHA-1: 3fea05c6536c45387f1b9fc2045a6009c6ff3e82 SHA-256: 8683e7cd70ef85a70cb63b89d4741bc67a96b8ddf9243c21776daf1fad8b5d66
84 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The critical ClamAV detection for 'Pdf.Exploit.Agent-36962' strongly suggests a PDF exploit. The presence of embedded files and an embedded URL further supports this, indicating the document likely attempts to download and execute a secondary payload. The XFA form and AcroForm button heuristics point to specific PDF features that could be leveraged for exploitation.

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 0x2BC2 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2C74 1029 bytes
embedded_file_obj0043.bin
faa63921e590ea6bc90ca48253be80b8e3600b93abfeb0f6b1a36c7ef4849973		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2E8D 1796 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x32D8 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x3384 77 bytes

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