PDF malware analysis — malicious · 27eadf9945d58265

MALICIOUS

PDF

13.4 KB

MD5: 9abe6b89d17d51dad6f1d0300c139027 SHA-1: 28e94cc88a1a37067804a77e674c375b49c0e8e6 SHA-256: 27eadf9945d58265b600c5f37ed4a4ff06e259c6e706015fd3963777b2e03281

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The critical ClamAV detection and high ML classifier score strongly indicate malicious intent. The presence of embedded files and an XFA form suggests the PDF is designed to exploit vulnerabilities. The embedded URL, while seemingly benign, could be a lure or part of a multi-stage attack. The ML_NYX_PDF_MALICIOUS heuristic further supports the classification as a malicious PDF exploit.

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 0x2ADD	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2B8F	1029 bytes
`embedded_file_obj0043.bin` `e4357621b8ed8bbfa5f444ed3283aa0fc49504d729f067aebca709347820f72e`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2DA8	2028 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x3248	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32F4	77 bytes

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