Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fec205b2fcf034…

MALICIOUS

PDF

14.1 KB
MD5: 55fe0a67b7713cd829d10150eab0ee12 SHA-1: 9872a145f2f113e71dfa470d5818cdf015767d37 SHA-256: 98fec205b2fcf0340a22dba50ac0caa047869b2902c2c04acdefedd5821fd867
84 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The critical ClamAV detection 'Pdf.Exploit.Agent-36962' strongly indicates a PDF exploit. The presence of embedded files and an embedded URL further supports the attack pattern of delivering a malicious payload. The XFA form and AcroForm button heuristics suggest the exploit leverages interactive elements within the PDF to trigger the malicious action. The embedded URL is likely used to download the secondary stage.

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 0x2B11 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x2BC3 1029 bytes
embedded_file_obj0043.bin
cf60be8d7cb4a695bf3bd51493b230cbe23e717ef78d3072a75a399a4ea8ddd2		 pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x2DDC 1839 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x3225 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x32D1 77 bytes

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