PDF malware analysis — malicious · cc9bba9e541c2b6d

MALICIOUS

PDF

13.3 KB

MD5: 0f6270d949fb9fc56679d20f3c21b8b4 SHA-1: 45d90fe9862c9c0d41226fd02b889a57f7844ad3 SHA-256: cc9bba9e541c2b6d0760e69b4fc76cafd25353e89142adfe113069fd3749ff10

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The critical ClamAV detection and high ML classifier score strongly indicate malicious intent. The presence of PDF-specific heuristics like 'AcroForm button with action trigger' and 'Embedded file' suggests an exploit is being leveraged. The embedded URL, though seemingly benign, could be a lure or part of a multi-stage attack. The overall pattern points to a PDF-based exploit designed to deliver a secondary payload.

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 0x27BD	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x286F	1029 bytes
`embedded_file_obj0043.bin` `ca2bacb751843d9af8db80af38fd7755052acc2dcc98e1f009f167d1d0743782`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2A88	1867 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x2EE2	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2F8E	77 bytes

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