Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1eecbe29b7b51d6…

MALICIOUS

PDF

14.2 KB
MD5: 2461470ace6f29c804b3dd15254cae99 SHA-1: 8ba3ad328ee77fd42d72f52905d4545a93c6c5dd SHA-256: a1eecbe29b7b51d60ba1be266eae43ad1f3c2680ee06afd051dd80aeac5b9c9a
116 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.001 PowerShell

The critical ClamAV detection and high ML classifier score indicate malicious intent. The PDF contains embedded files and an XFA form, suggesting it's designed to exploit vulnerabilities. The presence of an embedded URL further supports the delivery of a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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 0x2ADB 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2B8D 1029 bytes
embedded_file_obj0043.bin
d7b1078c871b5402d0a1bed7271ae0b15e8240f45cfc731f390a1abe670415be		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2DA6 1950 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x323C 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x32E8 77 bytes

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