Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5294d0904439f98…

MALICIOUS

PDF

14.1 KB
MD5: 810c3393f644b9ecf9b7ef1137952bcf SHA-1: 14aa6ca2115b34851dc28132a0edd5cbd2ed2111 SHA-256: c5294d0904439f98f2a00ea9423ba29941a0be60c08b03e4dc40512d7cfff240
84 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Agent-36962, indicating it exploits a known PDF vulnerability. The presence of embedded files and an XFA form further supports this, suggesting the document is designed to drop and execute a secondary payload. The embedded URL, while seemingly benign, is associated with the XFA form structure.

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 0x2AF3 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2BA5 1029 bytes
embedded_file_obj0043.bin
cf60be8d7cb4a695bf3bd51493b230cbe23e717ef78d3072a75a399a4ea8ddd2		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2DBE 1839 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x3207 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x32B3 77 bytes

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