Malicious PDF — malware analysis report

Static analysis result for SHA-256 88e1611f4c483fc3…

MALICIOUS

PDF

14.3 KB
MD5: 856455ea09149fe61d03bf2442953ceb SHA-1: 17fbdc02de31596b2cd09a08ab4c35297dd78c40 SHA-256: 88e1611f4c483fc317db0fa74d7d09fcda795b02c2357d21f5aea1a0467c06f7
84 Risk Score

Malware Insights

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

The critical ClamAV detection 'Pdf.Exploit.Agent-36962' strongly indicates a PDF exploit. The presence of embedded files and an embedded URL further supports this, suggesting the document is designed to lure the user into triggering an exploit that likely downloads a second-stage payload. The specific exploit mechanism is not detailed in the provided heuristics, hence the unknown family.

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 0x2BDB 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91
pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2C8D 1029 bytes
embedded_file_obj0043.bin
d49af98c55d3e65ec6464293af9aef7bbc76755592910bbd64ac795aa56b5c78
pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2EA6 1798 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169
pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x32F2 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275
pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x339E 77 bytes