PDF malware analysis — malicious · c48b591b4d4423e9

MALICIOUS

PDF

14.1 KB

MD5: b7ce89a7e454c2cd93e801e678461eb5 SHA-1: 38f48172fc7b1c81addc4fbe83802e65d8f82a2f SHA-256: c48b591b4d4423e93bbca177305a679cf21c6a9695cdaf6bf6f18e93ad0a0d5a

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1566 Phishing T1566.002 Spearphishing Attachment T1059 Command and Scripting Interpreter T1059.001 PowerShell

The critical ClamAV detection of 'Pdf.Exploit.Agent-36962' and the ML classifier strongly indicate malicious intent. The presence of PDF-specific heuristics like 'PDF_EMBEDDED' and 'PDF_ACROFORM_BUTTON' suggests the document is designed to exploit PDF vulnerabilities. The embedded URL, while seemingly benign, could be part of a larger exploit chain. The document likely serves as a dropper for further malicious activity.

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 0x2AC4	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2B76	1029 bytes
`embedded_file_obj0043.bin` `f44bf07a5e766e1ab751c881e0c803396c26566487c8d16ae18e3f70aa11a14f`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2D8F	1931 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x3209	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32B5	77 bytes

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