PDF malware analysis — malicious · 4ddd7b4a2d678f70

MALICIOUS

PDF

13.0 KB

MD5: c7392de8d3871df9b40aed5f36110f0d SHA-1: fd539e2c25deb615b4a3b95575e9fe4c890d8e37 SHA-256: 4ddd7b4a2d678f706b479b4c690bf1eccade4f57f4f1a9f6a00c6ab3228f3955

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, specifically as Pdf.Exploit.Agent-36962. Heuristics indicate the presence of an embedded file and an AcroForm button with an action trigger, suggesting an exploit is likely present. The embedded URL, while seemingly benign, is associated with the exploit context.

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 0x26C4	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2776	1029 bytes
`embedded_file_obj0043.bin` `9c58a0994eee827abd1bc8adae7b02a4c6236f9577fb5360a2838db447a23842`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x298F	1789 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x2D9F	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2E4B	77 bytes

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