Malicious PDF — malware analysis report

Static analysis result for SHA-256 34b4f68615d619b9…

MALICIOUS

PDF

13.2 KB
MD5: 76ba91552eeb3481cfc488ef7254d3cb SHA-1: 1fd4f0bf47e4fc325a04e5159d89190978b5f1a2 SHA-256: 34b4f68615d619b9d02afb24c8f0fc01a2211eda96035d1ff81f3112932f4f7b
84 Risk Score

Malware Insights

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

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 an embedded URL and multiple embedded files further supports the likelihood of a malicious payload delivery mechanism. The XFA form and AcroForm button heuristics suggest interactive elements are used to trigger the exploit.

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 0x29FE 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2AB0 1029 bytes
embedded_file_obj0043.bin
9e7a581f438026ff0c2968b5c1ca0b543bb2863e217fb44d41759e1ce0c23b55		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2CC9 2011 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x3169 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x3215 77 bytes

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