PDF malware analysis — malicious · 0f8bfd5b7441fdb7

MALICIOUS

PDF

99.7 KB

MD5: d2aec625f3330bced9ce8d776f031270 SHA-1: 9671e4c8d124bb7ff047f32d367ee301713aec06 SHA-256: 0f8bfd5b7441fdb784e79fa42f0c2c917ebed4649d11c34b76d3af94ad2d5cb4

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF sample contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is known to be used for arbitrary code execution. This exploit likely facilitates the download and execution of a secondary payload, as indicated by the embedded script payload heuristic. The ML classifier also strongly flagged this PDF as malicious.

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` `5da4e72c4c7696fe4260704e47aebcf31b248f4b1f40ed0223a32496ca48a67a`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101354 bytes

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