PDF malware analysis — malicious · 461ad3dfe42e633a

MALICIOUS

PDF

13.3 KB

MD5: ea5a19c92f7ee315bbc7470bb041a510 SHA-1: 6a69ccbf168f6a13259921596632e4b48d99a994 SHA-256: 461ad3dfe42e633a329b35639a6b7375dce43a8d7859ff387b483c01ee4a4248

116 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter T1059.001 PowerShell

The critical ClamAV detection and high ML classifier score strongly indicate malicious intent. The PDF_EMBEDDED and PDF_ACROFORM_BUTTON heuristics suggest the document contains and attempts to trigger an embedded exploit. The presence of an embedded URL further supports the attack pattern of luring the user into executing malicious content. The embedded files are likely components of the exploit or a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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 0x2779	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x282B	1029 bytes
`embedded_file_obj0043.bin` `cc9bf9b4bff960fcc875cced8773f18df40c06e7a9fe9a44ed7dafd435f6cc72`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2A44	1866 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x2E9C	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2F48	77 bytes

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