PDF malware analysis — malicious · ee1bd5d71b0e6d48

MALICIOUS

PDF

14.1 KB

MD5: 350a39b40086e57a4f594dfe8137dbc4 SHA-1: 645b5ca3a867e893e6ac6fbe30d9ee8b2539d939 SHA-256: ee1bd5d71b0e6d483e5a3489316a83de0dcd625ece6f70843d5f5d64fc9caefb

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious PDF T1566.002 Phishing: Spearphishing Attachment

The critical ClamAV detection and high ML classifier score strongly indicate malicious intent. The PDF contains embedded files and an XFA form, which are common vectors for PDF exploits. The embedded URL, while seemingly benign, is associated with the XFA structure, suggesting it might be part of the exploit chain.

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 0x2ABA	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2B6C	1029 bytes
`embedded_file_obj0043.bin` `f44bf07a5e766e1ab751c881e0c803396c26566487c8d16ae18e3f70aa11a14f`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2D85	1931 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x31FF	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32AB	77 bytes

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