PDF malware analysis — malicious · 8ba5f82d4f9c77a9

MALICIOUS

PDF

9.2 KB

MD5: 2df3ead649d73c54642c9e63d9448577 SHA-1: 24fb1b96d81caf418b1306857d77d0e6528cb73e SHA-256: 8ba5f82d4f9c77a9a90e2c8125694ed0eeadc60147a43df35a9d4e8cbfcaf2ee

134 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF sample contains an embedded script payload and triggers the CVE-2010-0188 exploit for Adobe Reader. This exploit is known to facilitate arbitrary code execution. The ML classifier strongly indicates maliciousness. The embedded URL is likely part of the exploit chain or a command and control channel.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
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` `1c0d1e6cef9b07ba60d1cd9fd9722d9762488d3aed6fd3fe05c4d8354724f8b0`	pdf-embedded-file	PDF EmbeddedFile object 111 at offset 0xFBF	58506 bytes
`embedded_file_obj0044.bin` `3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169`	pdf-embedded-file	PDF EmbeddedFile object 44 at offset 0x1F98	144 bytes
`embedded_file_obj0045.bin` `10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275`	pdf-embedded-file	PDF EmbeddedFile object 45 at offset 0x2045	77 bytes

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