Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97d8449ffdada49…

MALICIOUS

PDF

13.1 KB
MD5: 42c74994b396c7f24c179f170ba1ff71 SHA-1: 1e8d0d23c4a3321ef9069f1fe50462cebc1d9434 SHA-256: e97d8449ffdada4907bf3af9338ffd7e9b597748f9e3262d488f67dc42987b48
84 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link T1566 Phishing T1566.001 Spearphishing Attachment T1566.002 Spearphishing via Service

The critical ClamAV detection for 'Pdf.Exploit.Agent-36962' strongly indicates a PDF exploit. The presence of an embedded file and an embedded URL further supports this, suggesting the document is designed to lure the user into triggering an exploit that likely downloads a secondary payload. The XFA form and AcroForm button heuristics point to specific PDF features that could be leveraged for this 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 0x26D8 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x278A 1029 bytes
embedded_file_obj0043.bin
9c58a0994eee827abd1bc8adae7b02a4c6236f9577fb5360a2838db447a23842		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x29A3 1789 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x2DB3 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x2E5F 77 bytes

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