Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c58e00f0bc1847a…

MALICIOUS

PDF

14.1 KB
MD5: 723498a2eb79d4bc65a2bcd23b269c73 SHA-1: 0f8572cade2aaf80c44e4807146e00ee657c44b4 SHA-256: 3c58e00f0bc1847a8cd8537b140ccb7c1cb70c5a0e05af2793d64f19fe288911
84 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded files and an embedded URL. The ClamAV heuristic indicates it is a known PDF exploit. The embedded URL is likely used to download additional malicious content or redirect the user to a malicious site. The presence of embedded files suggests a multi-stage attack.

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 0x2ACB 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2B7D 1029 bytes
embedded_file_obj0043.bin
87c1876ce7bc6a06fb524af6c457bf7e85544c6d71d3d217c24dc868dc2c081f		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2D96 1929 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x3209 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x32B5 77 bytes

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