PDF malware analysis — malicious · bdb6f3c2cf201cf4

MALICIOUS

PDF

4.2 KB

MD5: 214f5d0ca17f8bd0506fc9e3e34a2e63 SHA-1: 1e9dbb1a8505da58849ef269cda6b4aa04efeab7 SHA-256: bdb6f3c2cf201cf4f8c0443dba20002d16321def52883e6fc20594b50586ee9a

128 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit, targeting Adobe Reader. This exploit allows for arbitrary code execution, indicating a malicious intent to compromise the user's system. The ML classifier strongly supports the malicious nature of this file.

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` `75a16b8b16df52b5145761573cecf117e095047ee885c49de0c58cb27d4567bd`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12990 bytes

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