Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bb3195941ea4783…

MALICIOUS

PDF

13.3 KB
MD5: 8f44333ca183d61a3c824c0ef904ec91 SHA-1: 39e7621f5e4a6b44cb908d60de9e29e961333dbe SHA-256: 2bb3195941ea4783ead52f0a445c67d010dfe4f6916ba1aa53fe4d3d17401ce6
84 Risk Score

Malware Insights

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

The critical ClamAV detection of 'Pdf.Exploit.Agent-36962' strongly indicates a PDF exploit. The presence of embedded files and an XFA form further supports this, suggesting the PDF is designed to exploit vulnerabilities and download or execute additional malicious content. The embedded URL, while seemingly benign, could be part of the exploit chain.

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 0x27B5 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91
pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2867 1029 bytes
embedded_file_obj0043.bin
ca2bacb751843d9af8db80af38fd7755052acc2dcc98e1f009f167d1d0743782
pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2A80 1867 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169
pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x2EDA 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275
pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x2F86 77 bytes