PDF malware analysis — malicious · f1701cd9f691dca1

MALICIOUS

PDF

14.1 KB

MD5: 99d6930cd0f53fb64c51a3890278651a SHA-1: 7b44aab336f43a1b84d5dd34d73c0452e62a0c9e SHA-256: f1701cd9f691dca19fea2347429297828aeef51fdaf0d506c2f9d0c311cfd328

114 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1566 Phishing T1059 Command and Scripting Interpreter

The critical ClamAV detection and ML classifier firing strongly indicate malicious intent. The PDF contains embedded files and an XFA form, which are common vectors for exploit delivery. The embedded URL, while not directly malicious in reputation, is part of the exploit chain. The primary attack pattern involves exploiting PDF vulnerabilities to execute arbitrary code.

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 0x2ADF	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0x2B91	1029 bytes
`embedded_file_obj0043.bin` `87c1876ce7bc6a06fb524af6c457bf7e85544c6d71d3d217c24dc868dc2c081f`	pdf-embedded-file	PDF EmbeddedFile object 43 at offset 0x2DAA	1929 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x321D	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x32C9	77 bytes

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