PDF malware analysis — malicious · db6da5c54bd91d6f

MALICIOUS

PDF

13.4 KB

MD5: d197bb2ea29e1dd211a15527bff3d57e SHA-1: 3e97ff0468253d5694a572e5b694a04ff17393f4 SHA-256: db6da5c54bd91d6f462ed2dc7204f0ad64fd303ce2b65e19bf29747f54edfa8f

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.002 Phishing: Spearphishing Attachment T1190 Exploit Public-Facing Application

The critical ClamAV detection and ML classifier firing strongly indicate malicious intent. The presence of embedded files and an embedded URL suggests the PDF is a dropper or exploit document, likely intended to download and execute a secondary payload. The XFA form and AcroForm button heuristics further support the exploitation vector.

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.

Filename	Kind	Source	Size
`embedded_file_obj0041.bin` `c06dcd026a7ea0536b63e07ce688691b585339a3ab7ff59065e546b56308c7bb`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x2ABF	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2B71	1029 bytes
`embedded_file_obj0043.bin` `e4357621b8ed8bbfa5f444ed3283aa0fc49504d729f067aebca709347820f72e`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2D8A	2028 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x322A	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32D6	77 bytes

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