PDF malware analysis — malicious · e35b11140d0e4192

MALICIOUS

PDF

14.2 KB

MD5: 9c90883d68a18f78832683a2177e31ea SHA-1: 0bd5fe3315dbb8f09021c9586734e64b409005c0 SHA-256: e35b11140d0e4192c0a6f54c612802a4a87fafe571e3623e6b73ccc1f177871d

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The file was detected by ClamAV as Pdf.Exploit.Agent-36962, and a machine learning classifier also flagged it as malicious with high confidence. The presence of an embedded file and an AcroForm button with an action trigger suggests the PDF is designed to exploit a vulnerability and download a secondary payload. 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 0x2ADB	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2B8D	1029 bytes
`embedded_file_obj0043.bin` `d7b1078c871b5402d0a1bed7271ae0b15e8240f45cfc731f390a1abe670415be`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2DA6	1950 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x323C	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32E8	77 bytes

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