PDF malware analysis — malicious · e2cbe2e72756c4d0

MALICIOUS

PDF

9.2 KB

MD5: ade46df2af92b0f9e81e3263f1fc7be0 SHA-1: e4896f91f92253a6523c0fe19f7295ff6c914325 SHA-256: e2cbe2e72756c4d02a42dad0af2569cad1bb8d48a61d375980b14dbd7aca1764

74 Risk Score

Malware Insights

MITRE ATT&CK

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

The ML classifier strongly flagged this PDF as malicious, and heuristic rules indicate the presence of embedded script payloads and actions triggered by form buttons. The embedded URL, while seemingly benign, is present within the context of a malicious document. The primary attack vector appears to be leveraging PDF features to execute embedded code or exploit vulnerabilities.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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 0xCF3	85 bytes
`embedded_file_obj0042.bin` `dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91`	pdf-embedded-file	PDF EmbeddedFile object 42 at offset 0xDA5	1029 bytes
`embedded_file_obj0111.bin` `8d2620c5e3870952fe2960197d017991627e49829b9e851bedd170c059a1ab1d`	pdf-embedded-file	PDF EmbeddedFile object 111 at offset 0xFBF	59238 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x1F72	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x201F	77 bytes

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