PDF malware analysis — malicious · 03a881abbefb9892

MALICIOUS

PDF

99.9 KB

MD5: 5a77410911827f4df2d024a16c6c6ca7 SHA-1: 98fa14e271920cf2442159b658d3078976cac332 SHA-256: 03a881abbefb9892c1b730716a4ba359c483c501e586ff4e73ae2a62b3fbbe9b

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF file identified as malicious by an ML classifier and heuristics indicating exploitation of CVE-2010-0188. This vulnerability targets Adobe Reader's LibTIFF component via XFA forms. The embedded script, though obfuscated, likely attempts to download and execute a second-stage payload from a remote source, a common technique for initial compromise.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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 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
Embedded script payload in PDF stream low 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 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://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `00940c39f5fe9dca6eaba5b5d4871b2bcc30f6088392479c26860690aacfd158`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101504 bytes

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