PDF malware analysis — malicious · 8a0f1fa9ece382fc

MALICIOUS

PDF

4.1 KB

MD5: e758cdedb26dd29b54a227113ccb4fbe SHA-1: 2634fabe674cc4eb09419bd866e48441059884cb SHA-256: 8a0f1fa9ece382fc70d5db61e767da1c6e4110dd2b668ac4eb94dd45f8f53a15

128 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF sample contains an embedded XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. This exploit is known to be used for arbitrary code execution. The ML classifier strongly indicates maliciousness. No document body or script content was available for further analysis, but the exploit itself is sufficient to classify this as a malicious document designed to compromise the user's system.

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` `28283a7a29615419624b32934ae759699934c1b61ca01077d3767f812bd02f55`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12600 bytes

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