PDF malware analysis — malicious · 3c4c5610c88294b9

MALICIOUS

PDF

4.1 KB

MD5: 235a2920c46c5b3656cbaf3fd08aae75 SHA-1: fae2558ac71e309467ce5557251bc9ae6b316616 SHA-256: 3c4c5610c88294b948a2c8a1cac70d945782c6bff983423c93719b4cecf58e84

128 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code upon opening in a vulnerable Adobe Reader version. The ML classifier strongly supports a malicious verdict. No scripts were extracted, and the document body was unreadable.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `218a9456b17a8dc492fe1b9c86be90c963ffe11a1ad1e453e97fbefa9d39cc2b`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12859 bytes

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