PDF malware analysis — malicious · 87a2be246285c752

MALICIOUS

PDF

100.0 KB

MD5: d986fea456bea683a94e4c3081ddde37 SHA-1: 191422d867967df10df01c83f97f0bf22e66d1ab SHA-256: 87a2be246285c7528211c58c4a6068d7af3e783235222e604b4ccd9a7af9c056

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF sample contains a critical heuristic firing for CVE-2010-0188, an Adobe Reader exploit targeting XFA forms. This indicates the file is designed to achieve code execution upon opening in a vulnerable reader. While no specific malicious URLs or scripts were directly extracted, the exploit itself is the primary indicator of malicious intent, likely leading to the download of further malicious content.

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` `d6f06f6584fbd47cb830bd2d52a1fdd7c445f63bf213c8dafdc65798b754c7f7`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101616 bytes

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