PDF malware analysis — malicious · 5490067ef5d2fd2e

MALICIOUS

PDF

14.3 KB

MD5: cbc3b942ddf6e73178c73c0363225cd1 SHA-1: bd84f55dcd0533b7b570eae7722ff58cc49b4d54 SHA-256: 5490067ef5d2fd2ee6d81f7f8501d25806c822f3d0512e0fa6038985c503a1fd

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, specifically as 'Pdf.Exploit.Agent-36962'. The presence of PDF-specific heuristics like 'PDF_EMBEDDED' and 'PDF_ACROFORM_BUTTON' indicates the exploitation of PDF features. The embedded URL, though seemingly benign, is associated with the malicious detection, suggesting it may be part of the exploit chain.

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 0x2BCC	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2C7E	1029 bytes
`embedded_file_obj0043.bin` `faa63921e590ea6bc90ca48253be80b8e3600b93abfeb0f6b1a36c7ef4849973`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2E97	1796 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x32E2	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x338E	77 bytes

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