PDF malware analysis — malicious · 373f340f2fb6138c

MALICIOUS

PDF

13.7 KB

MD5: de9ba0295be9dc7375ad9e697c33ac7b SHA-1: 8693d1caa8d770e1d9d1bb651f4ee2b3b7755cb4 SHA-256: 373f340f2fb6138c28be6d62a2b7804f25bc7eb1b6ab64b4ad9108ea02fd9219

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The file is a PDF document flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36962'. The presence of embedded files and an XFA form suggests an attempt to exploit PDF vulnerabilities. The ML classifier also strongly indicates maliciousness. The embedded URL is likely part of the exploit chain.

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 0x290D	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x29BF	1029 bytes
`embedded_file_obj0043.bin` `cc9bf9b4bff960fcc875cced8773f18df40c06e7a9fe9a44ed7dafd435f6cc72`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2BD8	1866 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x3030	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x30DC	77 bytes

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