PDF malware analysis — malicious · f9c1d3dc21c43124

MALICIOUS

PDF

13.3 KB

MD5: ce430ca004a95c5e05057beccc2fe0ed SHA-1: 5bbe36cdc2094ca15ce7d4f72b14e696262449da SHA-256: f9c1d3dc21c4312496982642f2afa48819b5a6aed0804993631a71a7d811d112

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter

The critical ClamAV detection and high ML classifier score strongly indicate malicious intent. The PDF contains an embedded file and an AcroForm button with an action trigger, suggesting it's designed to exploit a vulnerability or trick the user into executing malicious content. The embedded URL, while seemingly benign, is present in a context of other suspicious indicators.

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 0x27AB	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x285D	1029 bytes
`embedded_file_obj0043.bin` `ca2bacb751843d9af8db80af38fd7755052acc2dcc98e1f009f167d1d0743782`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2A76	1867 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x2ED0	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2F7C	77 bytes

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