PDF malware analysis — malicious · 50e4e50190c60be0

MALICIOUS

PDF

13.4 KB

MD5: d6a4f4f569eb3ea6926018646875a750 SHA-1: 06e9781a08cff9fb0500c004ae262e3449590196 SHA-256: 50e4e50190c60be0787789b775229925ad2b0ed1b93cec6671585f56b0248a8a

114 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

The file was flagged by a machine learning classifier and ClamAV as malicious, specifically as Pdf.Exploit.Agent-36962. Heuristics indicate the presence of embedded files and an AcroForm button with an action trigger, suggesting an exploit attempt. The embedded URL, while seemingly benign, is associated with the 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 0x2AE7	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2B99	1029 bytes
`embedded_file_obj0043.bin` `e4357621b8ed8bbfa5f444ed3283aa0fc49504d729f067aebca709347820f72e`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2DB2	2028 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x3252	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32FE	77 bytes

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