Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ed8dabfc2c297d8…

MALICIOUS

PDF

14.7 KB
MD5: 65b24ec3ef4358245d3c1643377a8e2a SHA-1: 685a9cbd877c08001496781aa30a0c4889ea0792 SHA-256: 4ed8dabfc2c297d855635bad65b1ba2224382c81e0ee8fe4cae447beead7a317
84 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 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 document is designed to trigger an exploit upon opening. The embedded URL, while not directly malicious in reputation, is part of the document's structure that facilitates 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 0x2CF5 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2DA7 1029 bytes
embedded_file_obj0043.bin
d7b1078c871b5402d0a1bed7271ae0b15e8240f45cfc731f390a1abe670415be		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2FC0 1950 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x3456 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x3502 77 bytes

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