PDF malware analysis — malicious · 2b8e4643b97fff13

MALICIOUS

PDF

14.1 KB

MD5: 2768da010982f63c58f1a901428d2ad4 SHA-1: 78ecd8f90999d3a81a238090865f0d2c39ecd915 SHA-256: 2b8e4643b97fff132ca0a14db8070497cac2c0bf3cda230c48731b9fd2399b62

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 presence of embedded files and an embedded URL suggests the document is designed to exploit PDF vulnerabilities, likely to download and execute a secondary payload. The specific ClamAV detection 'Pdf.Exploit.Agent-36962' points towards an exploit-based attack.

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 0x2AED	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2B9F	1029 bytes
`embedded_file_obj0043.bin` `cf60be8d7cb4a695bf3bd51493b230cbe23e717ef78d3072a75a399a4ea8ddd2`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2DB8	1839 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x3201	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32AD	77 bytes

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